Inexhaustible rhymes with:
adjustable, christabelle, combustable, constable, contestable, cristobal, digestible, harvestable, huxtable, investable, irresistible, suggestible
Inexhaustible sounds like:
inequitable, injectable, insatiable, insightful
adjustable, christabelle, combustable, constable, contestable, cristobal, digestible, harvestable, huxtable, investable, irresistible, suggestible
inequitable, injectable, insatiable, insightful