Here's what rhymes with smallish.
polish abolish demolish Words that almost rhyme with smallish
orris loris liquorice clitoris corporis wherefores offish modish snobbish mawkish popish longish ravish hawkish donnish hoggish varnish astonish admonish garnish starfish tarnish codfish crawfish dogfish largish waspish shortish cloddish garfish sharpish warmish blokish accomplish impoverish dwarfish swordfish blondish schoolmarmish