Longish rhymes with:
bangish, abolish, accomplish, admonish, amateurish, amish, anguish, astonish, babish, babyish, bangish, banish, barish, barnish, barrish, beamish, bearish, benish, berish, blemish, blowfish, blueish, bluish, bookish, boorish, bowdish, boyish, brackish, bradish, brandish, british, brownish, brutish, bullish, buresh, burnish, candlish, cavendish, cherish, childish, churlish, clannish, corniche, cornish, crayfish, dalgleish, danish, darwish, demish, demolish, dervish, devilish, diminish, distinguish, dobesh, dovish, elfish, elish, embellish, english, establish, extinguish, faddish, fallish, farish, farrish, fetish, feverish, fiendish, finish, finnish, flattish, flemish, flourish, folkish, foolish, frankish, furbish, furnish, garish, garnish, gerrish, ghoulish, gibberish, girlish, gladish, grayish, greenish, hagfish, hamish, hamlisch, hanisch, hanish, harnisch, harnish, hashish, hawkish, heinisch, hellish, horseradish, huish, impish, impoverish, inglish, irish, italish, janisch, janish, jaquish, jewish, kadish, kalish, kalisz, kertesz, killifish, kokesh, kronish, kulish, kunesh, kurdish, languish, lavish, lettish, licorice, mactavish, maish, malnourish, manish, maresh, marish, mawkish, mccamish, mccandlish, mctavish, mellish, mickish, mikesh, minish, moorish, morrish, naish, newish, nightmarish, nourish, ornish, outlandish, papesh, parish, parrish, peevish, perish, pinkish, polish, pollyannish, prudish, przybysz, publish, puckish, punish, purplish, radish, raffish, rakish, reddish, redish, reestablish, refinish, refurbish, reish, relinquish, relish, replenish, rheinisch, rightish, rubbish, schweizerische, scottish, selfish, semifinish, sheepish, skirmish, skittish, slavish, sluggish, smallish, smartish, snobbish, snohomish, sollish, soltesz, spanish, squeamish, standish, stanish, stylish, swedish, tarnish, tavish, ticklish, tunafish, turkish, undernourish, vanish, vanquish, varnish, warmish, whitish, wimbish, windisch, windish, yanish, yellowish, yiddish
Longish sounds like:
laing, lama's, lamacchia, lamas, lamica, laminack, lamine's, lamke, lamm's, lammons, lamonica, lamons, lamos, lanasa, lance, lance's, lancia, lancz, lane's, lanes, lanese, lang, lange, lange's, lango, langowski, language, languages, languish, languishes, laning, lanius, lank, lanka, lanka's, lanky, lanning, lanno's, lansky, lanz, lanza, lanzi, lanzo, launch, launches, launius, lawing, lawniczak, lawns, laying, layman's, leaming, leaning, leanings, leans, leanza, leeming, lehman's, leins, lemans, lemanski, lemcke, lemieux, leming, lemke, lemming, lemmings, lemmons, lemons, lemos, lemus, lemzo, lena's, lenexa, leng, leniency, lenig, lenin's, lenis, lenius, lenk, lenke, lennig, lenning, lennon's, lennox, leno's, lenos, lenox, lens, lenses, lenz, lenz's, lenzi, lenzo, leon's, leones, leong, leung, lewelling, lewensky, lewensky's, lewing, lewins, lewinski, lewinsky, lewinsky's, liam's, lian's, liang, liens, lillian's, limas, limehouse, limes, liming, limoges, limos, linage, linc, lince, linch, linck, lincks, line's, lineage, lineages, linens, lines, lines', ling, lingg, lingo, lings, lingua, lingus, lining, linings, link, link's, linkage, linkages, linke, linkous, links, linnas, linnik, linowes, lins, linsay, linse, linsey, linskey, linsky, linus, linux, linwick, linz, linzey, linzy, lion's, lionize, lions, lions', llamas, llanas, llanes, llanos, loan's, loaning, loans, loans', loehmann's, lohnes, lolling, lomak, lomas, lomax, lomonaco, lonas, lones, long, long's, longe, longhi, longhouse, longo, longs, lons, lonski, lonsky, lonsky's, lonsway, looming, loomis, looms, loong, loons, louima's, lounge, lounges, lowensky, lowing, lowinsky, lulling, lumex, luminance, luminoso, luminous, lummus, lumonics, lunacy, lunch, lunches, lung, lunge, lunges, lungs, lunz, luong, luongo, lying, lynch, lynch's, lynes, lyness, lyng, lynk, lynn's, lynskey, lynx, lynxes, lyon's, lyonnais, lyonnais's, lyonnaise, lyons, lyons's