JLPT N3 · Verb

腐る (kusaru)

腐る (くさる, kusaru) is a Japanese verb meaning “to rot; to go bad”. It appears in JLPT N3 vocabulary lists and is marked as a common word in JMdict.

Reading: くさる
Romaji: kusaru
Word class: Godan verb (う-verb) ending in る
Level: JLPT N3 (unofficial)

Meaning

to rot; to go bad; to decay; to spoil; to fester · godan verb, intransitive
to corrode; to weather; to crumble · godan verb, intransitive
to become useless; to blunt; to weaken (from lack of practice) · godan verb, intransitive
to become depraved; to be degenerate; to be morally bankrupt; to be corrupt · godan verb, intransitive
to be depressed; to be dispirited; to feel discouraged; to feel down · godan verb, intransitive

Example sentences

これらのオレンジは腐っている。

These oranges have gone bad.

Tatoeba #217994

Sentences from the Tatoeba project, linked to this word in JMdict.

Conjugation of 腐る

Godan verb (う-verb) ending in る. Plain and polite forms below; try any other word in the Japanese verb conjugator.

Form	Japanese	Reading
Dictionary	腐る	くさる kusaru
Polite (~masu)	腐ります	くさります kusarimasu
Negative	腐らない	くさらない kusaranai
Polite negative	腐りません	くさりません kusarimasen
Past	腐った	くさった kusatta
Polite past	腐りました	くさりました kusarimashita
Negative past	腐らなかった	くさらなかった kusaranakatta
Te-form	腐って	くさって kusatte
Potential	腐れる	くされる kusareru
Passive	腐られる	くさられる kusarareru
Causative	腐らせる	くさらせる kusaraseru
Volitional	腐ろう	くさろう kusarou
Imperative	腐れ	くされ kusare
Conditional (~ba)	腐れば	くされば kusareba

Kanji in 腐る

腐

rot, decay, sourフ・くさ.る・-くさ.る · 14 strokes

Related words

Other vocabulary sharing a kanji with 腐る.

腐敗ふはいdecomposition

Source: JMdict entry 1497800 (EDRDG, CC BY-SA 4.0). Level: unofficial JLPT list – how levels are assigned.