uncertain

Universal Words adjective 1 [usuallyafternoun] ~ (about / of sth) feeling doubt about sth; not sure: They're both uncertain about what to do. * I'm still uncertain of my feelings for him. OPPCERTAIN 2 likely to change, especially in a negative or unpleasant way: Our future looks uncertain. * a man of uncertain temper 3 not definite or decided: It is uncertain what his role in the company will be. 4 not confident SYNHESITANT: The baby took its first uncertain steps. IDIOMS in no uncertain terms clearly and strongly: I told him what I thought of him in no uncertain terms.