flustered Get Printable Handwriting Rhymes Hear It! Say It! Write It! Learn It! Spelling Test Definition verb. to cause to become nervous or confused or upset Example Sentence Billy became flustered when he could not find his ticket. Synonyms agitate; ruffle; upset Antonyms steady Hear It! Say It! Write It! flustered Switch to cursive Start Rhymes Two Syllable Rhymes (6) bustard clustered custard flustered mustard mustered Share with your friends: