unsure adj.
VERBS be, feel, look, seem, sound I felt a bit unsure about him. | remain | leave sb, make sb His sudden change of heart left Brenda unsure once more.
ADV. terribly, very | completely | a bit, a little, rather | obviously, plainly | still
PREP. about If you're still unsure about what you are supposed to do, speak up! | as to We were unsure as to what to do next. | of She was rather unsure of her reception.
You can also check other dicts: unsure (English, 中文解释 ), wordnet sense, Collins Definition