台無し

だいなし

mess, spoiled, (come to) nothing

JLPT N1

Character Breakdown

Meaning and Usage

"台無し" (だいなし) is a noun and na-adjective used to describe situations where something is completely ruined, spoiled, or comes to nothing. It often expresses frustration or disappointment when plans, efforts, or atmospheres are destroyed.

Common Contexts

It is frequently used in everyday conversation to talk about ruined plans, spoiled food, or destroyed moods. The word carries a strong negative nuance, emphasizing total loss or failure.

Collocations and Patterns

  • 台無しになる: to become ruined or spoiled
  • 台無しにする: to ruin or spoil something
  • 計画が台無しになる: the plan is ruined
  • 雰囲気が台無しになる: the atmosphere is spoiled

Register and Politeness

"台無し" is neutral and can be used in both casual and formal contexts, but it is more common in spoken language and informal writing.

Common Mistakes

Learners sometimes confuse "台無し" with words that mean "dirty" or "messy" in a physical sense. However, "台無し" emphasizes the idea of something being ruined or wasted rather than just untidy. Use it when something valuable or important is spoiled or lost.

Example Sentences

せっかくのけいかくがあめでだいなしになった。

The carefully made plan was ruined by the rain.

かれのひとことでふんいきがだいなしになった。

His one remark ruined the atmosphere.

どりょくがむだになってだいなしになるのはくやしい。

It's frustrating when effort goes to waste and everything is spoiled.