Following are all the plainish like words, in the list below.
PRETTYISH
100% like plainish
ROUGHISH
100% like plainish
FINEISH
100% like plainish
UGLYISH
100% like plainish
ROUNDISH
100% like plainish
BEIGEISH
100% like plainish
SHALLOWISH
100% like plainish
LANKISH
100% like plainish
NICEISH
100% like plainish
BLANKISH
100% like plainish
DRABBISH
100% like plainish
SIMILARISH
100% like plainish
SANDYISH
100% like plainish
BAREISH
100% like plainish
LIGHTISH
100% like plainish
PLAIN
100% like plainish
PALISH
100% like plainish
STANDARDISH
100% like plainish
BROADISH
100% like plainish
MEANISH
100% like plainish
NARROWISH
100% like plainish
PLAIN-LOOKING
100% like plainish
SOFTISH
100% like plainish
BLUNTISH
100% like plainish
LAMISH
100% like plainish
OILYISH
100% like plainish
MELLOWISH
100% like plainish
SOMBERISH
100% like plainish
SAMEISH
100% like plainish
QUAINTISH
100% like plainish
VULGARISH
100% like plainish
BAYISH
100% like plainish
COARSISH
100% like plainish
SLIMMISH
100% like plainish
PLAINLIKE
100% like plainish
FLATTISH
100% like plainish
KINDISH
100% like plainish
THINNISH
100% like plainish
PLUMPISH
100% like plainish
MUDDYISH
100% like plainish
AMBERISH
100% like plainish
SLEEKISH
100% like plainish
SOLIDISH
100% like plainish
BLONDISH
100% like plainish
WOODENISH
100% like plainish
RANKISH
100% like plainish
MODERNISH
100% like plainish
WIDISH
100% like plainish
LEANISH
100% like plainish
SALLOWISH
100% like plainish
DULLISH
100% like plainish
VAGUISH
100% like plainish
TIDYISH
100% like plainish
TANNISH
100% like plainish
SHYISH
100% like plainish
SPORTISH
100% like plainish
BRIGHTISH
100% like plainish
FIRMISH
100% like plainish
PICTURESQUISH
100% like plainish
GLOOMYISH
100% like plainish
HANDSOMEISH
100% like plainish
THICKISH
100% like plainish
SILVERISH
100% like plainish
SMOOTHISH
100% like plainish
LITTLISH
100% like plainish
CLEANISH
100% like plainish
LARGISH
100% like plainish
SALTYISH
100% like plainish
MOISTISH
100% like plainish
GRUFFISH
100% like plainish
DEEPISH
100% like plainish
RIPEISH
100% like plainish
TOUGHISH
100% like plainish
PEARLISH
100% like plainish
TALLISH
100% like plainish
OBTUSISH
100% like plainish
LIMPISH
100% like plainish
CREAMISH
100% like plainish
FRAILISH
100% like plainish
BLEAKISH
100% like plainish
RAINISH
100% like plainish
QUAINTLIKE
100% like plainish
SKINNYISH
100% like plainish
CHILLISH
100% like plainish
FLAXENISH
100% like plainish
FAINTISH
100% like plainish
YELLOWISH
100% like plainish
NEATISH
100% like plainish
OBLONGISH
100% like plainish
RAWISH
100% like plainish
SQUATTY
100% like plainish
GAYISH
100% like plainish
PLAIN AS SALISBURY
100% like plainish
VIOLETISH
100% like plainish
ODDISH
100% like plainish
HAPPYISH
100% like plainish
CLOUDISH
100% like plainish
SILENTISH
100% like plainish
STARKISH
100% like plainish
WHITISH
100% like plainish