緩慢|かんまんkanman[0]heiban (flat)

1. na-adjective, nounslow; sluggish; dull; slack; inactive
   コンピューターは、たとえ緩慢かんまんにせよ大おおきな変化へんかを引き起ひきおこした。↗

   Computers caused a great, if gradual, change.
2. na-adjective, nounlax (regulation, handling, etc.); slack; sloppy

• Synonym遅いおそいNeutralThe everyday word for slow; written 「晩い」 it also means late. 「緩慢」 is more formal, covering slow movements or changes and lax handling.
• SynonymのろいCasualThe same word 「遅い」 as above; written 「鈍い」 it covers only slow speed and sluggish movement, never lateness. 「緩慢」 is more objective and formal.
• SynonymスローNeutralA loanword for slow speed, as in 「スローモーション」. 「緩慢」 is more formal and can also describe lax handling.
• SynonymとろいCasualSlang for a person who is slow or dull to react; derogatory. 「緩慢」 objectively describes slow movements or changes.
• RelatedのろまCasualAn insult for a slow, unalert person. 「緩慢」 describes movements, changes, or handling.
• Related緩いゆるいNeutralMeans loose, and also gentle slopes or lax rules. 「緩慢」 focuses on slow speed and can also mean lax handling.
• RelatedどんくさいCasualSlang for clumsy, slow reactions; derogatory. 「緩慢」 means slow movement or lax handling, without the clumsiness nuance.
• Related鈍臭いのろくさいCasualThe same word 「鈍くさい」 as above; written 「鈍臭い」 it is a colloquial insult for dullness and clumsiness. 「緩慢」 is more formal, for sluggishness or poor handling.
• Related鈍重どんじゅうWrittenA formal word for heavy, sluggish movements or a dull, stolid nature. 「緩慢」 focuses on slow speed or lax handling.
• Related愚図ぐずCasualA derogatory word for someone who dawdles, often a child. 「緩慢」 describes movements or changes.
• Antonym迅速じんそくWrittenA formal antonym meaning swift, as in 「迅速な対応」; the opposite of 「緩慢」's sluggishness.
• Antonym敏捷びんしょうWrittenA formal antonym for nimble, agile movement; contrasts with 「緩慢」's slowness.

In everyday speech say 「遅い」. Use 「緩慢」 for slow movements or changes and for lax handling, as in 「緩慢な動き」. To call a person slow, use 「とろい」 or 「のろま」; for swift action, say 「迅速」.

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

1. 動うごきや変化へんかが遅おそいこと。進行しんこうがゆっくりしていること。
2. 対処たいしょや措置そちが手てぬるい様子ようす。