How to say "spoil" in Japanese

Choosing the right word
  • 甘やかすあまやかすJLPT N2approx.Common
    godan verb, transitive verbCovers 'spoil' as in pampering: indulging someone, often a child, so much that they become spoiled. This is the word when 'spoil' means overindulging a person.
    私は甘あまやかされた子供こどもは嫌きらいだ。↗
    I don't like spoiled children.
  • くさるJLPT N3approx.Common
    godan verb, intransitive verbCovers 'spoil' in the sense of going bad: food rotting or decaying. The food itself is what spoils; not the word for pampering people or for damaging things.
    これらのオレンジは腐くさっている。↗
    These oranges have gone bad.
  • 損なうそこなうJLPT N1approx.Common
    godan verb, transitive verbCovers 'spoil' in the sense of marring or impairing something — the nuance of 'harm' or 'damage'. Use it when 'spoil' means to detract from something, lessening its quality or value.
  • 壊すこわすJLPT N4approx.Common
    godan verb, transitive verbIts basic meaning is to wreck or break something. Use it for 'spoil' when that amounts to ruining or wrecking something — not for spoiled food or a spoiled child.
  • 痛めるいためるJLPT N1approx.Common
    ichidan verb, transitive verbReally means to harm or damage, often a part of the body. Its 'spoil' sense is marginal: seldom the word you want for spoiled food or a spoiled child — think 'hurt' or 'injure'.

Use 「甘やかす」 to spoil someone with indulgence, 「くさる」 for food going bad, 「損なう」 for marring or harming something, and 「壊す」 or 「痛める」 when 'spoil' amounts to damaging or ruining something.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

Japanese equivalents
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JLPT vocabulary levels are community estimates, not official (no official lists have been published since the 2010 revision).

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