不徹底|ふてっていfutettei[2]nakadaka (mid-high)

1. na-adjective, nouninconsistent; illogical; unconvincing; not thorough; indefinite; half-way

• Related不全ふぜんWrittenWritten/formal prose; mostly a medical suffix as in 「心不全」, stressing impaired function rather than incomplete follow-through.
• Related不備ふびWrittenWritten/formal prose; points to gaps or defects in preparation, as in 「書類の不備」, rather than work left half-finished.
• Related不完全ふかんぜんNeutralDescribes something incomplete or flawed, stressing the resulting state; 不徹底 stresses that execution fell short.
• Related至らないいたらないNeutralSuggests thought or ability falling short; often a humble phrase as in 「至らない点」, but can also criticize others. 不徹底 is about not seeing things through.
• Related寸足らずすんたらずCasualColloquial for something a bit too short or slightly inferior; it does not describe how thoroughly a task was carried out.
• Antonym徹底てっていNeutralMeans carrying things out thoroughly and completely; the direct opposite of 不徹底.

Use 「不徹底」 when measures or management are not carried through, as in 「対策が不徹底」. For gaps in preparation say 「不備」, for something incomplete 「不完全」; thorough follow-through is 「徹底」.

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

1. やり方かたが中途半端ちゅうとはんぱで、最後さいごまでやり遂とげていない様子ようす。