(むだ)

むだ
na-adjective
useless, wasteful
1. useless, wasteful, futile
Something that serves no purpose or achieves nothing.
Don't waste time.
I think that's useless.
無駄(むだ)努力(どりょく)だった
It was a wasted effort.
2. waste
As a noun, something that is wasted or unnecessary.
I want to reduce food waste.
I decided to review my monthly expenses and eliminate waste.

無駄(むだ) describes something that serves no useful purpose or yields no result. It functions as both a na-adjective and a noun.

COMMON PATTERNS:

COMMON COMPOUNDS:

USAGE:
Often used with をする for wasteful action or になる when something turns out to be pointless: せっかく努力(どりょく)無駄(むだ)なった (all that effort went to waste).