膨らみ・脹らみ|ふくらみfukurami[0]heiban (flat)

1. nounswelling; bulge; puff

• Synonym盛り上がりもりあがりNeutralA bulging part, but also a rise in excitement, as in 「会場の盛り上がり」; 「膨らみ」 stresses a rounded, plump bulge.
• Synonym隆起りゅうきWrittenWritten/formal prose for ground rising through crustal movement; 「膨らみ」 typically describes rounded parts of the body or objects.
• Synonym突起とっきWrittenWritten/formal word for a localized protrusion, pointed or rounded alike, as in 「突起物」; 「膨らみ」 stresses the overall swelling.
• SynonymこぶNeutralA lump or bump, such as one raised by a knock; carries a pathological tinge.
• Related突き出しつきだしNeutralA part that juts out, and also the small dishes served with drinks at an izakaya; unlike the rounded 「膨らみ」.
• Related突出とっしゅつWrittenWritten/formal prose for a part jutting out conspicuously, also figuratively for standing out; no rounded feel.
• Related出っ張りでっぱりCasualColloquial word for something sticking out, often angular or in the way; 「膨らみ」 suggests a rounder shape.
• Related出張りでばりWrittenWritten/formal word for a part of a building or the terrain that projects forward; not often used.
• Related突出物とっしゅつぶつWrittenWritten/formal, rather technical term for a protruding object; carries no sense of roundness.
• Antonym凹みへこみNeutralA hollow or dent, the opposite of the bulge of 「膨らみ」.
• Antonym萎みNeutralGoing limp or shriveling, the opposite of the swelling of 「膨らみ」; used rarely.

Use 「膨らみ」 for a rounded, plump bulge, as in 「胸の膨らみ」 or 「つぼみの膨らみ」. For something sticking out and in the way, 「出っ張り」; for ground rising, 「隆起」; for a hollow, 「凹み」. The others cover jutting parts, lumps or rising excitement.

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

1. ふくらむこと。また、その程度ていどや箇所かしょ。