noun
worthlessness; valuelessness
Abstract noun meaning lack of value or merit. Often used in formal or critical contexts.
その提案は無価値だと判断された。
The proposal was judged to be worthless.
彼は自分の存在を無価値に感じていた。
He felt his existence was worthless.
価値 is the positive counterpart, meaning 'value' or 'worth'.
Compound of 無 (mu, 'without') and 価値 (kachi, 'value').