散漫|さんまんsanman[0]heiban (flat)

1. na-adjective, nounvague; desultory; distracted; loose; half-hearted; diffuse; scattered
   寝不足ねぶそくだと注意ちゅういが散漫さんまんになりがちです。↗

   When you lack sleep, you are apt to be careless.

• Relatedだらし無いだらしないCasualColloquial word for a sloppy, undisciplined look or lifestyle; judges personal habits and character, while 「散漫」 is about unfocused attention or loose structure.
• Related雑ざつNeutralRough and careless in how things are done, as in 「仕事が雑」; unlike 「散漫」, it is not about a wandering mind but sloppy, unrefined work.
• Related粗雑そざつWrittenWritten word for crude, careless handling, thinking or argument, as in 「粗雑な議論」; 「散漫」 instead stresses distraction and lack of focus.
• RelatedぞんざいCasualColloquial; careless treatment of things or brusque, offhand speech; its emphasis differs from 「散漫」, which is about scattered attention.
• RelatedずさんWrittenWritten; slipshod and full of holes, said of work, surveys or management, as in 「ずさんな仕事」; 「散漫」 stresses a wandering, unfocused mind.
• RelatedちゃらんぽらんCasualColloquial; an irresponsible, devil-may-care attitude; carries a stronger negative judgement on character than 「散漫」.
• Antonym集中しゅうちゅうNeutralConcentration: attention gathered on one thing; the direct opposite of 「散漫」 with its scattered, unfocused mind.
• Antonym緻密ちみつWrittenWritten; meticulous and thorough with no gaps or oversights — the opposite of loose 「散漫」.
• Antonym緊密きんみつWrittenWritten; tightly joined with no gaps or discrepancies — the opposite of loose 「散漫」.

Use 「散漫」 for scattered attention or loosely organized writing, as in 「注意力散漫」「散漫な文章」. For rough, careless work use 「雑」; for a sloppy, undisciplined manner 「だらしない」. The opposites are 「集中」 and 「緻密」.

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

1. まとまりのないこと。気持きもちが集中しゅうちゅうしないこと。