Part of speech:
Not specifically known or ascertained:
Not clear in meaning or expression; inexplicit.
Not promising; likely to fail.
Not clear; indefinite; vague
The definition of doubtful is suspicious, unclear or unsure.
Not likely to happen.
Precarious; unstable; unreliable.
The definition of haphazard is something disorganized or without any particular order to it.
The definition of chance is accidental or not expected or planned.
Happening by chance; not planned; incidental
Happening by or subject to chance or accident; unpredictable:
(Medicine) Capable of being moved or compressed. Used of an abnormal mass such as a tumor or abscess.
Capable of happening but of uncertain likelihood:
Of dubious morality or respectability:
The definition of problematic is something that creates or presents a difficulty, or that seems to be untrue, unlikely or incorrect.
Given to the use of hypotheses
Limited to or based on theory; not practical or applied; hypothetical
In dispute, as land or territory claimed by more than one country.
Not having been announced:
The definition of capricious is someone or something that is subject to sudden, unpredictable changes.
(Scot.) Bringing good luck
Being such that alteration is possible:
Fond of controversy; disputatious.
Causing or giving rise to distrust.
Of questionable character:
Subject to doubt or question; uncertain.
Lacking consistency, regularity, or uniformity:
Characterized by irregular or intermittent activity, impulses, etc.; spasmodic; restless
Not affording certainty
Somewhat vague, obscure, confused, or indefinite
The definition of hesitant is someone or something that is tentative, cautious or unsure.
Not affording certainty
(Informal) Not definite; containing doubtful elements; dependent upon varying conditions
Changing or varying, especially often and without discernible pattern or reason.
Characterized by indecision; hesitating or vacillating
Not confident; filled with anxieties; apprehensive
The definition of irregular is something that doesn't conform to accepted or normal standards or that doesn't occur at regular intervals.
Unsure of how to act or proceed; undecided.
Not worthy of consideration or discussion because it has been resolved or it no longer needs to be resolved
The definition of nebulous is someone or something that is vague or unclear.
Dependent upon the will or favor of another person
Expressing inquisitive interest:
Inconstant in purpose, or volatile in behaviour.
(Mathematics) Having no fixed quantitative value.
Having or showing keen foresight and imagination
The definition of ambiguity is a word or sentence that is not clear about the intention or meaning.
In psychology, ambivalence is defined as the mental disharmony or disconnect a person may feel when having both positive and negative feelings regarding the same individual.
Something whose occurrence depends on chance or uncertain conditions; a possible, unforeseen, or accidental occurrence
The definition of a dilemma is a situation where there is no clear easy choice or answer.
(Obs.) Apprehension or fear
A doubtful thing
Lack of determination
Lack of exactitude; inexactness.
The definition of a penumbra is the lighted area around the shadow of a planet or moon during an eclipse.
(Logic) One of the basic states or classifications described by Aristotle into which all things can be placed; a category.
The definition of a quandary is a dilemma or a state of uncertainty.
Skepticism is a general attitude of distrusting or doubting.
Uncertainty is defined as doubt.
Tort law: Of an action or event, that it was predictable or should be anticipated.
Showing bad taste.
Open to argument:
Liable to exception; open to objection
Not explicit; vague; indefinite; general
Difficult to understand.
Having or exhibiting variation; varying:
Of diverse kinds:
Seemingly impossible; incredible
Displaying or marked by a lack of consistency, especially:
The definition of mercurial is changeable or fickle.
Very sensitive or easily upset; touchy
Playful or fanciful, especially in a humorous way:
Not great; calculable:
Free from doubt or confusion; certain:
Characterized by truth; not false:
Capable of or liable to change
Following no predictable pattern
Doubtful in mind
Open to or viewed with suspicion:
The definition of suspicious is someone or something questionable or likely to be suspect.
Like a fish in odor, taste, etc., specif., strongly or undesirably so
Completely obvious; blatant:
Of or characteristic of skeptics or skepticism
Like a fluid; that can change rapidly or easily; not settled or fixed
The definition of definite is something that has limits, is clear in meaning, absolutely true and positive.
The definition of determined is someone with their mind made up about something.
That cannot be doubted, questioned, or disputed; absolutely true; certain
Find another word for uncertain. In this page you can discover 157 synonyms, antonyms, idiomatic expressions, and related words for uncertain, like: undecided, tentative, undetermined, vague, suppositional, unlikely, ambiguous, unsettled, doubtful, unpredictable and improbable.