Overreacts rhymes with:
reacts, reacts, act's, acts, attracts, compacts, detracts, distracts, enacts, exacts, extracts, facts, impacts, interacts, medfacts, pact's, pacts, reacts, redactes, reenacts, retracts, tracts
Overreacts sounds like:
overacts, overcoats, overexcites, overshadows, overstates, overstock