Thesaurus

irregular

adjective

Synonyms & Antonyms of irregular

(Entry 1 of 2)

3 not having a level or smooth surface
  • although the moon looks smooth from here, it actually has a very bumpy and irregular surface

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4 not rigidly following established form, custom, or rules
  • the request is irregular, but I'll allow it

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5 not staying constant
  • irregular gusts of wind

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irregular

noun

Synonyms & Antonyms of irregular (Entry 2 of 2)

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Frequently Asked Questions About irregular

How is the word irregular distinct from other similar adjectives?

The words anomalous and unnatural are common synonyms of irregular. While all three words mean "not conforming to rule, law, or custom," irregular implies not conforming to a law or regulation imposed for the sake of uniformity in method, practice, or conduct.

concerned about his irregular behavior

When would anomalous be a good substitute for irregular?

Although the words anomalous and irregular have much in common, anomalous implies not conforming to what might be expected because of the class or type to which it belongs or the laws that govern its existence.

her drive made her an anomalous figure in a sleepy organization

When could unnatural be used to replace irregular?

The meanings of unnatural and irregular largely overlap; however, unnatural suggests what is contrary to nature or to principles or standards felt to be essential to the well-being of civilized society.

prisoners treated with unnatural cruelty

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Time Traveler for irregular

Time Traveler

The first known use of irregular was in the 14th century

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Cite this Entry

“Irregular.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/irregular. Accessed 14 Aug. 2020.

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More from Merriam-Webster on irregular

Dictionary: Definition of irregular

Medical Dictionary: Definition of irregular

Spanish Central: Translation of irregular

Nglish: Translation of irregular for Spanish Speakers

Britannica English: Translation of irregular for Arabic Speakers

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