inflected without a thematic vowel.
Origin of athematic
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for athematic
Historical Examples of athematic
In the verb the athematic conjugation has disappeared and the distinction of primary and secondary endings is not observed.
music not based on themes
linguistics (of verbs) having a suffix attached immediately to the stem, without an intervening vowel
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