How to say "sneaky" in Japanese

Choosing the right word
  • ずるいJLPT N2approx.Common
    i-adjectiveCovers sneaky in the sense of sly, cunning, or crafty: someone who gets their way by clever tricks or cheating. Often said with a tone of half-exasperated complaint at such behavior.
    狐きつねは他たのどんな動物どうぶつよりもずるいということだ。↗
    It is said that the fox is more cunning than any other animal.
  • 卑怯ひきょうJLPT N2approx.Common
    na-adjective, nounCovers sneaky as a term of strong condemnation: an unfair, mean, or dirty move that breaks the rules of fair play, such as striking an opponent who cannot defend themselves.
    そんなふうに言ゆうなんて卑怯ひきょうだ。↗
    It's mean of you to talk that way.

Use 「ずるい」 for sneaky meaning sly, cunning, or crafty cleverness, and 卑怯 when the sneaky behavior is condemned as unfair, mean, or dirty — an underhanded move rather than mere cleverness.

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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