noun, noun or participle which takes 'suru', intransitive verb, na-adjective
Refers to a quantitative or qualitative lack of something needed. Used as a noun, する verb, or な-adjective.
I'm lacking sleep.
この地域は医者が不足だ。
This area has a shortage of doctors.
noun, na-adjective
dissatisfaction; discontent; complaint
Expresses a feeling that something is not enough or not satisfactory. Often used in set phrases like 不足を言う or 不足に思う.
彼は給料に不足を言っている。
He is complaining about his salary.
今の生活に何の不足もない。
I have no complaints about my current life.