Certain synonyms

sûr'tn
Category:
Part of speech:
Having or showing no doubt; positive; confident
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Positive is defined as good, looking towards the good side of things, showing certainty, showing the presence of an illness or substance, more than zero, or charged with positive electricity.
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Assured is defined as something that is definite.
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In a state of satisfaction.
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(Of persons, states of mind, beliefs, etc.) Experiencing or harboring no doubts; entirely confident.
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Asking no questions; unquestioning.
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The definition of self-confident is someone who has confidence and is secure in their abilities.
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Confident
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Worthy of trust; dependable; reliable
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Reliable; dependable
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Not disturbed or distracted.
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Not concerned
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The definition of decisive is having the ability to make decisions or something that determines what comes next.
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Authoritative is defined as someone who knows a great deal about a certain subject and who is generally considered an expert.
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(Of a fact) Accepted without question; indisputable
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(Law) Complete; unconditional; final; without encumbrances; not liable to change or cancellation.
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That cannot be escaped or avoided; inevitable
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(Idiomatic) Intoxicated.
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(Idiomatic) not being used, or not to be used e.g.
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Free from risk; not liable to be lost; sure:
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Secure or stable:
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Comfortable and at ease, especially after a period of change or unrest.
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Fixed
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Fixed in one's opinion.
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Fixed
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Regarded with particular affection and admiration:
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Explicitly characterized by or having a particular linguistic feature. For example, girls is marked for plural in English, whereas sheep is not.
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Having a definition or value.
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Occurring or existing as something indefinite, as in time or position:
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Being of a certain unspecified (but often considerable) number, quantity, degree, etc.
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Specific but not named
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Specific but not named
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(Law) Of or having to do with an individual person; not shared or joint
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Having all sides or faces equal. For example, a square is a regular polygon, and a cube is a regular polyhedron.
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The definition of express is something that has a specific purpose or something that operates at a faster-than-normal speed.
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Of or based on probabilism
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Sure
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The definition of real is something that is true and authentic or something is very important or significant.
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Thoroughly explained; adequately commented.
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Fixed or set, as by agreement
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Never doubted; always steady and on course
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The definition of definite is something that has limits, is clear in meaning, absolutely true and positive.
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Possible to estimate, measure, or perceive:
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A fact or truth unquestionably established.
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Assured; certain
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Not to be contested; indisputable; unquestionable
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That cannot be avoided or evaded; certain to happen
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The property of being indisputable.
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Something that cannot be doubted; a certainty.
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The state or condition of being ineluctable.
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The property of being infallible; the ability to never make a mistake.
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Any unfailing means of gaining admission or achieving some other end
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A system of philosophy basing knowledge solely on data of sense experience; esp., a system of philosophy, originated by Auguste Comte, based solely upon the scientific study of observable phenomena: it rejects speculation about or the search for ultimate origins
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The quality or state of being actual or true.
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The act of securing
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Firmly, often dogmatically held:
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confident
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Uncertain; undecided:
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Not clearly predictable; uncertain; unsure
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Not confident.
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Tending to hesitate, wait, or proceed with caution or reservation.
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confident
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Precarious; unstable; unreliable.
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Not fixated or fixed; moving or changing freely
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Uncommitted, not having reached a decision.
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Unable to be predicted.
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Of questionable character:
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Constant; steadfast:
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The definition of incontrovertible is something that is definitely true and that cannot be denied or disproved.
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Clearly true; providing no possibility of doubt.
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Not assailable
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That cannot be denied; indisputable
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The definition of infallible is someone or something that is always perfect and right, without any errors or mistakes.
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Free from error
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Incapable of error; infallible.
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Capable of being relied on; dependable:
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Conforming to the ideal character or having all the basic characteristics of such; rightly so called
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Something that cannot be avoided.
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Persuaded, or otherwise feeling certainty
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With no exception or qualification; unexceptionable
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Free from flaw, blemish, or impurity:
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Unique, such that it cannot be mistaken for something else.
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The definition of reliable is dependable or capable of being trusted.
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Serving to put an end to doubt, question, or uncertainty; decisive:
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More than; in excess of
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Specialised; characteristic of a specific person or thing.
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(Logic) Of an individual thing considered by itself
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Relating to or directed toward a particular person, group, or purpose:
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Speaking definitely or distinctly
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Explicitly set forth; definite:
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(Of a person) Peaceful, quiet, especially free from anger and anxiety.
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Careful and exact
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By or for one person:
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Incapable of being comprehended; incomprehensible.
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Real or existing in fact as opposed to being assumed or deemed to have happened or exist. See also apparent and constructive.
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Necessarily or demonstrably true; incontrovertible.
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Being under legal or moral obligation:
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The definition of categorical is something that is absolute or without conditions, or that is related to classes or divisions.
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The definition of exact is completely true, following all guidelines or precise.
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Fully and clearly expressed; leaving nothing implied:
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Not erring; infallible
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(Physics) Incapable of being refracted.
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Exact conformity to truth, or to a rule or model; degree of conformity of a measure to a true or standard value.
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Assurance means the act of feeling confident in yourself.
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An end or a result regarded as inevitable:
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The state or characteristic of being incontrovertible, of not being debatable; incontestability.
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undoubtable, valid
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Not definitely as specified; uncertain
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(Slang) Describing certain features, usually the breasts or buttocks, that are extremely small or not visible at all.
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Too clear, bright, or penetrating to be pleasant
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Common misspelling of indisputable.
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Bound to be successful or perform as expected:
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In a definite and final form; not likely to change
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(Computing, object-oriented programming) Not subclassable; from which one cannot inherit.
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Not having been sealed.
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The definition of assertive is something with a strong taste or smell.
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The definition of genuine is authentic, real and honest.
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Not complicated; simple
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Not doubted, called in question, or disputed; certain
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Beyond doubt
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The definition of supreme is the highest or best.
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The definition of unqualified is something that is complete and total.
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Not disputed or doubted:
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Easily perceived or understood; obvious.
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Something that is assured or believed to be true:
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Not arguable.
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Synonym Study

  • Positive suggests unshakable confidence, esp. in the correctness of one's opinions or conclusions, sometimes to the point of dogmatism he's too positive in his beliefs
  • Confident stresses the firmness of one's certainty or sureness, esp. in some expectation she's confident she'll win
  • Sure suggests merely an absence of doubt or hesitancy I'm sure you don't mean it
  • Certain usually suggests conviction based on specific grounds or evidence this letter makes me certain of his innocence
Find another word for certain. In this page you can discover 144 synonyms, antonyms, idiomatic expressions, and related words for certain, like: sure, positive, assured, satisfied, undoubting, questionless, self-confident, believing, trustworthy, determined and secure.