Obviated rhymes with:
abbreviated, alleviated, abbreviated, affiliated, alleviated, associated, glaciated, inebriated, infuriated, initiated, instantiated, nauseated, negotiated, officiated, radiated, repudiated
Obviated sounds like:
obadiah, obeid, obeyed, obit, obviate, offbeat, offutt, oft, opiate, opt, opted, opto, ovate, ovett, oviatt, oviedo, ovitt, ovoid