thickened Get Printable Handwriting Rhymes Hear It! Say It! Write It! Learn It! Spelling Test Definition verb. to make or become thick or thicker Example Sentence We thickened the soup by adding cream and flour. Synonyms make more dense; callous; clot; Antonyms thin Hear It! Say It! Write It! thickened Switch to cursive Start Rhymes Two Syllable Rhymes (4) chickened quickened sickened thickened Share with your friends: