Synonyms of the word

uncertain

• adj. Not certain; unsure.
• adj. Not known for certain; questionable.
• adj. Not yet determined; undecided.
• adj. Variable and subject to change.
• adj. Fitful or unsteady.
• adj. Unpredictable or capricious.
• n. (with "the") Something uncertain.

ambiguous

• adj. Open to multiple interpretations.
• adj. Vague and unclear.
• adj. (obsolete, of persons) Hesitant; uncertain; not taking sides.

ambivalent

• adj. Simultaneously experiencing or expressing opposing or contradictory feelings, beliefs, or motivations.
• adj. Alternately having one opinion or feeling, and then the opposite.

chancy

• adj. uncertain, risky, hazardous.
• adj. subject to chance; random.

changeable

• adj. Capable of being changed.
• adj. Subject to sudden or frequent changes.

contingent

• n. An event which may or may not happen; that which is unforeseen, undetermined, or dependent on something…
• n. That which falls to one in a division or apportionment among a number; a suitable share; proportion.
• n. (military) A quota of troops.
• adj. Possible or liable, but not certain to occur; incidental; casual.
• adj. (with upon) Dependent on something that is undetermined or unknown.
• adj. Dependent on something that may or may not occur.
• adj. Not logically necessarily true or false.

doubtful

• adj. Subject to, or causing doubt.
• adj. Experiencing or showing doubt, sceptical.
• adj. Undecided or of uncertain outcome.
• adj. (obsolete) Fearsome, dreadful.
• adj. Improbable or unlikely.
• adj. Suspicious, or of dubious character.
• adj. Unclear or unreliable.
• n. A doubtful person or thing.

dubious

• adj. Arousing doubt; questionable; open to suspicion.
• adj. In disbelief; wavering, uncertain, or hesitating in opinion; inclined to doubt; undecided.

flukey

• adj. lucky.
• adj. unstable, prone to rapid and unpredictable changes.

fluky

• adj. Alternative spelling of flukey.

groping

• v. present participle of grope.
• n. An act of groping; a grope.

hesitant

• adj. Tending to hesitate, wait, or proceed with caution or reservation.

iffy

• adj. (slang) Of dubious authenticity, legitimacy or legality.
• adj. Uncertain or chancy.

incertain

• adj. uncertain.

indefinite

• adj. Without limit; forever, or until further notice; not definite.
• adj. Vague or unclear.
• adj. Undecided or uncertain.
• adj. (mathematics) An integral without specified limits.
• adj. (linguistics) Designating an unspecified or unidentified person or thing or group of persons or things.
• n. (grammar) A word or phrase that designates an unspecified or unidentified person or thing or group of…

indeterminate

• adj. Not accurately determined or determinable.
• adj. Imprecise or vague.
• adj. (biology, of growth) with no genetically defined end, and thus theoretically limitless.
• adj. (botany, of inflorescences) not topped with some form of terminal bud.
• adj. intersex.

undependable

• adj. Not dependable.

undetermined

• adj. Not determined; not settled; not decided.
• adj. Not limited; not defined; indeterminate.

unpredictable

• adj. Unable to be predicted.
• n. An unpredictable thing.

unreliable

• adj. Not reliable.

unsealed

• v. simple past tense and past participle of unseal.
• adj. Not having been sealed.

unsettled

• adj. Disturbed, upset.
• adj. Not in a steady condition, uncertain, subject to change.
• adj. Not populated, having no settlers or other inhabitants.
• adj. Unpaid.
• v. simple past tense and past participle of unsettle.

unsure

• adj. uncertain.
• adj. unstable or precarious.

variable

• adj. Able to vary.
• adj. Likely to vary.
• adj. Marked by diversity or difference.
• adj. (mathematics) Having no fixed quantitative value.
• adj. (biology) Tending to deviate from a normal or recognized type.
• n. Something that is variable.
• n. Something whose value may be dictated or discovered.
• n. (mathematics) A quantity that may assume any one of a set of values.
• n. (mathematics) A symbol representing a variable.
• n. (programming) A named memory location in which a program can store intermediate results and from which…
• n. (astronomy) A variable star.
• n. (nautical) A shifting wind, or one that varies in force.
• n. (nautical, in the plural) Those parts of the sea where a steady wind is not expected, especially the parts…