Copyright © 2026 Kotomora. All Rights Reserved.

Words Kanji Guides About

膨らかす (ふくらかす) Japanese meaning | Kotomora

膨ふくらかす

Meanings

1

godan verb (-su), transitive verb

to expand; to inflate

archaic

Archaic transitive verb meaning to cause something to swell or expand. Modern Japanese normally uses 膨らます (ふくらます) instead.

See also: 膨らます

古ふるい文ぶん献けんでは「風ふう船せんを膨ふくらかす」という表ひょう現げんが

見み

られる

。

In old documents, the expression 'to inflate a balloon' can be found.

Written forms

膨ふくらかす
Standard kanji spelling for this archaic transitive verb.
脹ふくらかす
Alternate kanji spelling; rarely used.

Kanji

膨swell, get fat, thick
脹dilate, distend, bulge

Similar words

膨ふくらます
膨らます is the modern transitive form meaning 'to inflate' or 'to expand something', while 膨らかす is its archaic equivalent.
膨ふくらむ
膨らむ is the intransitive counterpart meaning 'to swell' or 'to expand' (by itself).

Etymology

Archaic transitive form related to 膨らむ (intransitive) and 膨らます (modern transitive). The exact historical derivation is uncertain.