[ uh-nom-uh-luh s ]
/ əˈnɒm ə ləs /


deviating from or inconsistent with the common order, form, or rule; irregular; abnormal: Advanced forms of life may be anomalous in the universe.
not fitting into a common or familiar type, classification, or pattern; unusual: He held an anomalous position in the art world.
incongruous or inconsistent.
Grammar. irregular.

Origin of anomalous

1640–50; (< Medieval Latin, Late Latin anōmalus) < Greek anṓmalos irregular, equivalent to an- an-1 + homalós even, with ō by analogy with other Gk privatives (cf. anopheles); see homo-, -ous

Related forms

a·nom·a·lous·ly, adverba·nom·a·lous·ness, noun

Can be confused

anomalous anonymous euonymus unanimous Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for anomalous

British Dictionary definitions for anomalous


/ (əˈnɒmələs) /


deviating from the normal or usual order, type, etc; irregular, abnormal, or incongruous

Derived Forms

anomalously, adverbanomalousness, noun

Word Origin for anomalous

C17: from Late Latin anōmalus, from Greek anōmalos uneven, inconsistent, from an- + homalos even, from homos one and the same
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