Dictionary.com
Thesaurus.com

-ulous

American  

  1. a suffix occurring in adjectives borrowed from Latin, with the meaning “inclined to do, habitually engaging in” the action specified by the initial element.

    bibulous; credulous; garrulous; tremulous.

Etymology

Origin of -ulous

< Latin -ulus, -ula, -ulum; -ule, -ous

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.