無む駄だ

無駄 is the general word for something wasteful or useless, while 不毛 specifically evokes barren land or effort that produces nothing at all, even metaphorically.

無駄 focuses on the lack of practical benefit or wastefulness of an act, while 虚しい emphasizes the emotional feeling of pointlessness that follows a failed effort.

無駄 means 'wasteful' or 'pointless' in a general sense, whereas 台無し emphasizes that something valuable has been ruined beyond repair.

無駄 stresses wastefulness or futility of an act, while ロス simply names the loss or missing amount itself.

無駄 is a neutral noun meaning 'waste' or 'futile,' while もったいない adds an emotional sense of regret that something good is being squandered.

無駄 focuses on something being wasteful or useless, whereas 無為 focuses simply on the absence of action.

無駄 focuses on something being wasteful or unproductive, whereas くだらない more broadly labels something as worthless or not worth attention.

無駄 focuses on something being useless or wasted, while 余計 focuses on something being extra or intrusive beyond what's needed.

無駄 is a neutral word for something wasteful or pointless, while ヤクザ (in its adjective sense) carries a stronger moral judgment of being trashy or worthless.

non-fruit-bearing flower; blossom that doesn't bear fruit