How to say "cunning" in Japanese

Choosing the right word
  • ずるいJLPT N2approx.Common
    i-adjectiveSly, sneaky cunning of the everyday kind: someone who bends the rules to come out ahead. Fits cheating at a game, or a friend who dodges their share of the bill.
    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.
  • 悪賢いわるがしこいCommon
    i-adjectiveCunning of the wicked kind: shrewdness bent to crooked, self-serving ends. Often describes the crafty look in a schemer's eyes or a wily, untrustworthy character.
    あの政治家せいじかは悪賢わるがしこい。↗
    That politician is an old fox.
  • 悪知恵わるぢえCommon
    nounUse this when you want a noun: the craft, guile or slyness itself — the crooked cleverness behind someone's schemes — rather than the schemer. Think of sneaky little tricks worked up to get one's way.
  • ずる賢いずるがしこいCommon
    i-adjectiveDevious cunning: genuine shrewdness yoked to sneakiness. Describes a crafty schemer who calculates every angle for advantage; much the same territory as 悪賢い.
    彼かれはとてもずる賢がしこいので私は嫌きらいだ。↗
    I don't like him because he is sly as a fox.
  • 巧みたくみJLPT N1approx.Common
    na-adjectiveNot about deceit: this covers 'cunning' only in its positive sense of skillful, adroit, masterful — deft execution rather than slyness. For a crafty or sneaky person, this is not the word you want.
    彼かれは、話術わじゅつが巧たくみだ。↗
    He has a good art of talking.

For sly, deceitful cunning, choose 「ずるい」 for everyday sneakiness, 「悪賢い」 or 「ずる賢い」 for crafty schemers, and 悪知恵 when you need the noun — the guile itself; 「巧み」 serves only 'cunning' in its skillful sense.

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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