This is the 111th most frequent Chinese word.
未
"未" means "not yet" or "un-."
Indicating something has not occurred or achieved.
任务尚未完成。
The task is not completed yet.
Used to denote a state not being reached or achieved.
他的年龄未满十八岁。
His age has not reached eighteen yet.
Used as a formal or literary indicator meaning 'before.'