Outdate rhymes with:
accommodate, backdate, consolidate, dilapidate, elucidate, intimidate, inundate, invalidate, liquidate, mandate, mithridate, multicandidate
Outdate sounds like:
o'day, o'dea, o'dowd, oad, oat, oath, oathout, oda, oday, odd, oddi, oddity, oddy, ode, odea, oded, odette, odowd, ot, ota, otey, otha, ott, ottawa, ottaway, otte, otto, out, outdated, outdid, outdo, outed, outta, outwit, outwitted, owada, owed