Part of speech:
Having or showing no doubt; positive; confident
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.
Assured is defined as something that is definite.
Asking no questions; unquestioning.
The definition of self-confident is someone who has confidence and is secure in their abilities.
Worthy of trust; dependable; reliable
Not disturbed or distracted.
The definition of decisive is having the ability to make decisions or something that determines what comes next.
Authoritative is defined as someone who knows a great deal about a certain subject and who is generally considered an expert.
That cannot be escaped or avoided; inevitable
(Idiomatic) not being used, or not to be used e.g.
Free from risk; not liable to be lost; sure:
Secure or stable:
Regarded with particular affection and admiration:
Explicitly characterized by or having a particular linguistic feature. For example, girls is marked for plural in English, whereas sheep is not.
Occurring or existing as something indefinite, as in time or position:
Being of a certain unspecified (but often considerable) number, quantity, degree, etc.
Specific but not named
Specific but not named
(Law) Of or having to do with an individual person; not shared or joint
Having all sides or faces equal. For example, a square is a regular polygon, and a cube is a regular polyhedron.
The definition of express is something that has a specific purpose or something that operates at a faster-than-normal speed.
Of or based on probabilism
The definition of real is something that is true and authentic or something is very important or significant.
Fixed or set, as by agreement
The definition of definite is something that has limits, is clear in meaning, absolutely true and positive.
Possible to estimate, measure, or perceive:
A fact or truth unquestionably established.
Not to be contested; indisputable; unquestionable
That cannot be avoided or evaded; certain to happen
Any unfailing means of gaining admission or achieving some other end
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
The quality or state of being actual or true.
Firmly, often dogmatically held:
Not clearly predictable; uncertain; unsure
Precarious; unstable; unreliable.
Of questionable character:
The definition of incontrovertible is something that is definitely true and that cannot be denied or disproved.
That cannot be denied; indisputable
The definition of infallible is someone or something that is always perfect and right, without any errors or mistakes.
Free from error
Incapable of error; infallible.
Capable of being relied on; dependable:
Conforming to the ideal character or having all the basic characteristics of such; rightly so called
Something that cannot be avoided.
Persuaded, or otherwise feeling certainty
With no exception or qualification; unexceptionable
Free from flaw, blemish, or impurity:
The definition of reliable is dependable or capable of being trusted.
Serving to put an end to doubt, question, or uncertainty; decisive:
(Logic) Of an individual thing considered by itself
Relating to or directed toward a particular person, group, or purpose:
Speaking definitely or distinctly
Explicitly set forth; definite:
Careful and exact
By or for one person:
Necessarily or demonstrably true; incontrovertible.
Being under legal or moral obligation:
The definition of categorical is something that is absolute or without conditions, or that is related to classes or divisions.
The definition of exact is completely true, following all guidelines or precise.
Fully and clearly expressed; leaving nothing implied:
Not erring; infallible
Exact conformity to truth, or to a rule or model; degree of conformity of a measure to a true or standard value.
Assurance means the act of feeling confident in yourself.
An end or a result regarded as inevitable:
Not definitely as specified; uncertain
(Slang) Describing certain features, usually the breasts or buttocks, that are extremely small or not visible at all.
Too clear, bright, or penetrating to be pleasant
Bound to be successful or perform as expected:
In a definite and final form; not likely to change
The definition of assertive is something with a strong taste or smell.
The definition of genuine is authentic, real and honest.
Not complicated; simple
Not doubted, called in question, or disputed; certain
The definition of supreme is the highest or best.
The definition of unqualified is something that is complete and total.
Not disputed or doubted:
Easily perceived or understood; obvious.
Something that is assured or believed to be true:
- 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.