How to say "rigid" in Japanese

Choosing the right word
  • 厳しいきびしいJLPT N4approx.Common
    i-adjectiveCovers 'rigid' as strict and harsh: inflexible demands, standards, or discipline that allow no leniency. It is the most general of these words, also covering severe conditions and unsparing treatment.
    彼かれは厳きびしい批判ひはんにさらされた。↗
    He was subjected to severe criticism.
  • 厳正げんせいCommon
    na-adjective, nounSeldom the word you want for 'rigid': it really means exact and fair — strict, impartial judgment or evaluation, the fairness expected of a judge or examiner.
  • 厳重げんじゅうJLPT N2approx.Common
    na-adjective, nounCovers 'rigid' as stringent: tight security, strict precautions, rigorous controls. It describes how thoroughly something is guarded, checked, or enforced, not the stiffness of a person or object.
    トップエンジニアが、その車くるまに一連いちれんの厳重げんじゅうな検査けんさを加くわえた。↗
    The top engineer put the car through a series of rigorous tests.
  • 厳格げんかくCommon
    na-adjective, nounCovers 'rigid' as stern and inflexible in character or discipline: a stern parent, rigid adherence to rules, an unbending sense of duty. It describes persons and attitudes more than physical things.
    彼かれらは時間じかんに関かんしては厳格げんかくな考え方かんがえかたをしている。↗
    They have a strict idea of time.
  • 窮屈きゅうくつJLPT N1approx.Common
    na-adjective, nounCovers 'rigid' as stiff, cramped, or constrained: tight clothes, a cramped space, the discomfort of formal or ceremonious occasions. Its 'strict' sense applies to rules or requirements that feel confining rather than severe.

Choose 「厳しい」 for harsh, unsparing strictness, 厳格 for stern, inflexible discipline, 厳重 for stringent security or precautions, 厳正 for exact, impartial judgment, and 窮屈 for stiffness, a cramped feel, or confining formality.

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

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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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