adjective
1.
not confident or sure
feels very insecure about his future
Synonyms: unassured, unconfident, unsure
Related Word: hesitant, questioning, uncertain
Idioms: in suspense, up in the air
Contrasted words: assured, confident, self-assured, self-confident, sure
Antonyms: secure
2.
Synonyms: weak 2, dickey, fluctuant, rootless, shaky, unstable, unsure, vacillating, wavering, wobbly
Antonyms: secure