Nadir rhymes with:
nader, snader, ader, blockader, crader, crusader, evader, fader, grader, hader, haider, invader, kader, lader, mader, nader, rader, raider, sader, schader, schmader, schrader, seder, shader, shrader, snader, spader, srader, stader, strader, swader, trader, vader, wader
Nadir sounds like:
n'dour, nader, natter, nature, neater, neathery, nedrow, needier, neider, neither, nether, nethery, netter, netware, neuter, nieder, niederer, nitro, notaro, notary, noteware, nother, notre, notter, nutri, nutria, nutter