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  1. happening or occurring at long intervals or rarely: infrequent visits.
  2. not constant, habitual, or regular: an infrequent visitor.
  3. not plentiful or many: infrequent opportunities for advancement.
  4. far apart in space.

Origin of infrequent

First recorded in 1525–35, infrequent is from the Latin word infrequent- (stem of infrequēns). See in-3, frequent
Related formsin·fre·quent·ly, adverb

Synonyms for infrequent

See more synonyms for on Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for infrequently


  1. rarely happening or present; only occasional
Derived Formsinfrequency or infrequence, nouninfrequently, adverb
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for infrequently



1530s, from Latin infrequentem (nominative infrequens) "occurring seldom, unusual," from in- "not" (see in- (1)) + frequens (see frequent). Related: Infrequently.

Online Etymology Dictionary, © 2010 Douglas Harper