Aghast rhymes with:
gassed, gast, amassed, assed, ast, bast, blast, cast, caste, classed, fast, gassed, gast, glassed, grassed, harassed, hast, kast, lambaste, last, lymphoblast, massed, mast, miscast, nast, passed, past, precast, rast, recast, surpassed, unsurpassed, vast
Aghast sounds like:
acadia, accede, acceded, accessed, accetta, accost, accosted, accused, aced, acetate, aceto, ached, acid, acidity, acosta, acott, acquiesced, acquit, acquitted, act, acted, actuate, acuity, acusyst, acute, aesthete, agate, agatha, aged, aghazadeh, agitate, agitated, agosta, agosto, aguacate, aguado, aist, ajito, akihito, akita, akst, aqazadeh, asat, asato, ascot, ascott, asda, ashwood, aside, asked, asquith, assad, assed, assessed, asset, assist, assisted, associate, associated, assuaged, ast, asta, astute, aucott, augat, august, augusta, auguste, augusto, aust, austad, austat, axed, axid, axt, azzato