inertia Get Printable Handwriting (in-er-tia) 3 syllables Rhymes Learn It! Spelling Test Definition noun. an inclination not to do work or engage in activities Example Sentence He had to overcome his inertia and get back to studying. Synonyms laziness; idleness; inaction Antonyms action; drive Rhymes Two Syllable Rhymes (1) myrtia Three Syllable Rhymes (1) inertia Share with your friends: