厳格|げんかくgenkaku[0]heiban (flat)

1. na-adjective, nounstrict; severe; stern; rigid; rigorous; tough
   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.

• Synonym厳しいきびしいNeutralThe most common and wide-ranging word for severe or stern; 「厳格」 is narrower, stressing scrupulous adherence to rules and discipline.
• Synonym厳重げんじゅうNeutralCovers tight security and careful handling, as in 「厳重に保管」, or severe treatment; 「厳格」 is about a strict attitude toward rules.
• Synonym峻厳しゅんげんWrittenWritten term for stern, forbidding harshness, as in 「峻厳な態度」; rarer than 「厳格」, which is the more common everyday choice.
• Related冷厳れいげんWrittenWritten word for coldly impersonal severity, or harsh facts that allow no evasion, as in 「冷厳な現実」; 「厳格」 describes an attitude.
• Related厳密げんみつWrittenWritten word for precision and rigor with no gaps or omissions, as in 「厳密に言えば」; it targets interpretation and judgment, 「厳格」 a strict manner.
• RelatedきついCasualColloquial for tight, tough or brusque — a demanding pace, harsh words; 「厳格」 is about scrupulous discipline, not strain or bluntness.
• RelatedシビアCasualColloquial loanword for severe, unsparing judgments and standards, as in 「シビアな判断」; 「厳格」 sounds more formal and bookish.
• Related手厳しいてきびしいNeutralDescribes scathing, unsparing criticism or treatment; 「厳格」 points to a steady, ongoing strict attitude rather than one harsh verdict.
• RelatedいかめしいWrittenWritten word for a stern, grave, imposing manner that daunts people; 「厳格」 is about keeping rules, not an awe-inspiring presence.
• Related峻烈しゅんれつWrittenWritten word for fierce, cutting severity in speech, competition or battle; 「厳格」 is about rules and discipline, not intensity.
• Antonym寛大かんだいNeutralTolerant, generous and lenient — the direct opposite of the severity of 「厳格」.
• Antonym甘いあまいCasualColloquially also lenient or soft on someone, as in 「子に甘い」; the everyday opposite of 「厳格」.
• Antonym緩いゆるいNeutralIn its lenient sense (also written 「緩い」), it means lax and half-hearted, not strict enough — the opposite of 「厳格」.

For scrupulous strictness about rules and discipline, as in 「厳格な父親」, choose 「厳格」. For severity in general use 「厳しい」; for precision and rigor 「厳密」; for tight security 「厳重」. The opposites are 「寛大」 and 「甘い」.

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

1. いい加減かげんにしない、厳きびしい態度たいどや様子ようす。