ぶかぶかbukabuka

1. no-adjective, na-adjective, adverb (with と), suru verbtoo large (clothing); baggy; loose-fitting
2. no-adjective, na-adjective, adverb (with と), suru verbbulging; warping
3. adverb, suru verbparp; toot; blast

• Synonym緩いゆるいNeutralThe most general word for loose, as in 「ベルトが緩い」. It covers any looseness and also lax rules, while 「ぶかぶか」 is specifically clothes too big and hanging empty.
• RelatedゆるゆるCasualColloquial word for something very loose or baggy, as in 「ゆるゆるのズボン」. It stresses looseness itself, while 「ぶかぶか」 stresses clothes being too large and hanging empty.
• AntonymぴったりNeutralDescribes a perfect fit, as in 「サイズがぴったり」. It is the direct opposite of 「ぶかぶか」, which suggests extra room and a shapeless look.
• AntonymきついNeutralSays clothing or shoes are tight, as in 「靴がきつい」. The opposite of 「ぶかぶか」: too small and pressing rather than too large and loose.

Use 「ぶかぶか」 for clothes or shoes that are too large and hang loose, as in 「ぶかぶかの靴」. For looseness in general pick 「緩い」, for very loose (colloquial) 「ゆるゆる」; the opposites are 「ぴったり」 (perfect fit) and 「きつい」 (tight).

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

1. サイズが大おおきすぎて身体しんたいに合あっていないさま。
2. 水みずなどに浸つかり物ものが浮ういているさま。
3. 濡ぬれるなどして物ものが膨ふくれて柔やわらかくなっているさま。