(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:

  • 無駄(むだ)な + noun: 無駄(むだ)時間(じかん) (wasted time), 無駄(むだ)努力(どりょく) (wasted effort)
  • 無駄(むだ)にする: to waste (時間(じかん)無駄(むだ)にする = waste time)
  • 無駄(むだ)になる: to go to waste, be wasted
  • 無駄(むだ)がない: no waste, efficient

COMMON COMPOUNDS:

  • 無駄(むだ)(づか)い: wasteful spending
  • 無駄(むだ)(ばなし): idle chatter
  • 無駄(むだ)(あし): a wasted trip
  • 無駄(むだ)()に: dying in vain

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