Words That Rhyme With "Cosmetically" :

3 syllables:

chemically, credibly, critically, ethically, ethnically, fetidly, hectically, hecticly, helically, lexically, pettishly, readily, sceptically, skeptically, steadily, technically, tepidly, testily

4 syllables:

aesthetically, alchemically, angelically, ascetically, athletically, authentically, bullheadedly, chaotically, clearheadedly, coquettishly, decrepitly, eccentrically, ecstatically, electrically, emphatically, erotically, erratically, esthetically, fanatically, forensically, frenetically, genetically, heretically, hermetically, hotheadedly, hypnotically, identically, incredibly, intrepidly, magnetically, majestically, neurotically, pathetically, phonetically, piratically, poetically, polemically, politically, quixotically, sabbatically, stiffneckedly, synthetically, systemically, theoretically, uncritically, unethically

5 syllables:

academically, acrobatically, alphabetically, analytically, antiseptically, antithetically, apathetically, apolitically, apostatically, asymptotically, autocratically, biochemically, bureaucratically, catalytically, democratically, dialectically, empathetically, energetically, evangelically, histochemically, hypercritically, hypocritically, hypothetically, idiotically, kinaesthetically, kinesthetically, parenthetically, pathogenically, patriotically, pharmaceutically, philatelically, photochemically, pyrochemically, stratagemically, symbiotically, sympathetically, theocratically, therapeutically, thermostatically

6 syllables:

apologetically, electrochemically, electrostatically, geopolitically, homeostatically, physicochemically, undemocratically, unpatriotically, unsympathetically