English Lexicon

Irregular

/ɪˈrɛɡ.jə.lər/
adjectiveCEFR B2 (Upper)Top #1500 frequency
Full Thesaurus

Comprehensive Definitions & Senses

2 senses
As adjective
  1. 1

    Not conforming to established rules or patterns.

    "The irregular shapes of the clouds made the sky look more dramatic."
  2. 2

    Occurring at unpredictable intervals.

    "He has irregular sleeping patterns that affect his productivity."

Thesaurus & Semantic Spectrum

Antonyms & Contrasting Words (1)

Linguistic Origin & Historical Etymology

The word 'irregular' originates from the Latin 'irregulares', which is a combination of 'in-' meaning 'not' and 'regularis' meaning 'regular'. It entered the English language in the late Middle Ages, evolving to describe something that deviates from the norm or standard.

Quick Vocabulary Retention Check

Which of the following is the closest synonym for "Irregular"?

Thesaurus & Synonyms Graph

Explore Nuanced Synonyms for "Irregular"

Discover exact matches, context-specific alternatives, and antonyms with intensity ratings in the VocabDictionary Thesaurus.

View "Irregular" Synonym Map