Words That Rhyme With "Gastric" :
2 syllables:
Astrid, awestruck, clastic, drastic, mastic, nastic, Patrick, plastic, spastic
3 syllables:
ballastic, bombastic, digastric, dynastic, dysplastic, elastic, euplastic, fantastic, gymnastic, iatric, monastic, sarcastic, scholastic, stochastic, synclastic
4 syllables:
allopatric, anaclastic, anaplastic, anelastic, antiblastic, anticlastic, antiplastic, archiblastic, cataplastic, ceroplastic, chiliastic, cryptoclastic, cytoclastic, cytoplastic, diploblastic, entoblastic, epigastric, epispastic, fibroplastic, geriatric, holoblastic, holophrastic, homoplastic, hyperplastic, hypogastric, inelastic, lymphoblastic, meroblastic, mesoblastic, monoblastic, neoplastic, onomastic, orgiastic, orthoclastic, paederastic, paraphrastic, pederastic, pediatric, periphrastic, pneumogastric, poroplastic, predynastic, psychiatric, pyroclastic, semiplastic, thermoplastic, thromboplastic, trophoblastic, zymoplastic
5 syllables:
achondroplastic, aeroelastic, ameloblastic, amphitheatric, ecclesiastic, encomiastic, enthusiastic, heteroplastic, homeoplastic, iconoclastic, interscholastic, paronomastic, photoelastic, poikiloblastic, thermoelastic, viscoelastic