Ader rhymes with:
blockader, crader, crusader, evader, fader, grader, hader, haider, invader, kader, lader, mader, nader, nadir, rader, raider, sader, schader, schmader, schrader, seder, shader, shrader, snader, spader, srader, stader, strader, swader, trader, vader, wader
Ader sounds like:
adair, adaire, adar, addair, adder, adhere, ador, adora, adore, adoree, adra, adrea, adria, atari, ater, atither, ator, atra, atria, attar, attire, atwater, auditor, auditory, audrey, audrie, audry, autery, auther, authier, author, autrey, autry, awtrey, aydar