subregular

English

Etymology

From sub- +‎ regular.

Adjective

subregular (comparative more subregular, superlative most subregular)

1. Almost or imperfectly regular.
   • 2006, Ted Briscoe, Ann Copestake, Valeria de Paiva, Inheritance, Defaults and the Lexicon, page 8:

     However, there are verbs for which past participle formation is irregular (e.g. sleep, slept; write, wrote) and within these irregular verbs there are subregular classes (as well as purely lexical exceptions, such as go, went).