Synonyms of the word

unsure

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

ambivalent

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

diffident

• adj. (archaic): Lacking confidence in others; distrustful.
• adj. Lacking confidence in oneself; distrustful of one's own powers; not self-reliant; timid; modest; bashful;…

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.

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.

incertain

• adj. uncertain.

shy

• adj. Easily frightened; timid.
• adj. Reserved; disinclined to familiar approach.
• adj. Cautious; wary; suspicious.
• adj. (informal) Short, insufficient or less than.
• adj. Embarrassed.
• v. (intransitive) To avoid due to timidness or caution.
• v. (intransitive) To jump back in fear.
• v. (transitive) to throw sideways with a jerk; to fling.
• n. An act of throwing.
• n. A place for throwing.
• n. A sudden start aside, as by a horse.
• n. In the Eton College wall game, a point scored by lifting the ball against the wall in the calx.

timid

• adj. Lacking in courage or confidence.

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.

unconfident

• adj. Not confident.