noun
irregular conjugation; irregular verb
A grammatical term referring to verbs that do not follow regular conjugation patterns, such as する and 来る. Contrasts with 正格活用 (regular conjugation).
See also: 正格活用
「する」と「来る」は変格活用の動詞です。
"Suru" and "kuru" are irregular conjugation verbs.
正格活用 refers to regular conjugation, while 変格活用 refers to irregular conjugation.
Compound of 変格 (irregular) and 活用 (conjugation). The exact historical derivation is uncertain; the term is a standard linguistic classification.