How to say "sinister" in Japanese

Choosing the right word
  • 不吉ふきつJLPT N1approx.Common
    na-adjective, nounThe common, all-purpose word for the abstract sense of 'sinister': something that feels ominous or bodes misfortune, such as a foreboding dream or omen. When in doubt, this is the safe choice.
    13日にちの金曜日きんようびは不吉ふきつな日ひだと言いわれている。↗
    It is said that Friday the 13th is an unlucky day.
  • 禍々しいまがまがしい
    i-adjectiveA vivid word for something whose appearance or presence feels baleful and menacing — a sinister aura or atmosphere. More forceful than 不吉, and less common.
  • 縁起の悪いえんぎのわるい
    expression, i-adjectiveChoose it when the emphasis falls on bad luck or inauspiciousness rather than on menace. Less common than 不吉.
  • 陰険いんけん
    na-adjectiveCovers only the 'sinister (look)' sense: a sly, menacing look or expression hinting at hidden ill will. Not for ominous events or atmospheres — for other senses it is seldom the word you want.

Use 不吉 as the general word for something ominous or inauspicious, 「縁起の悪い」 when bad luck is the point, 「禍々しい」 for a baleful, menacing presence, and 陰険 only for a sinister look.

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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