Words That Rhyme With "Flattish" :
2 syllables:
atlas, Bacchus, baddish, batfish, brackish, Bradish, brattice, British, brutish, caddice, caddis, caddish, catfish, cattish, factice, faddish, fattish, fetich, fetish, gaddis, goatish, goutish, gratis, jutish, maddish, mantis, pastis, pettish, practice, practise, radish, rattish, rightish, schottische, Scottish, skittish, snappish, sottish, stoutish, sweetish, whitish
3 syllables:
coquettish, hydrastis, malpractice