inexhaustible

From in- +‎ exhaustible.

• IPA^(key): /ɪnɪɡˈzɔːstɪbl̩/
• Hyphenation: in‧ex‧haus‧ti‧ble

inexhaustible (not comparable)

1. Impossible to exhaust; unlimited.

   Antonym: exhaustible

   • 1834, L[etitia] E[lizabeth] L[andon], Francesca Carrara. […], volume I, London: Richard Bentley, […], (successor to Henry Colburn), →OCLC, pages 86–87:

     Henriette and Marie de Mancini, his former inexhaustible themes, seemed to have entirely escaped his memory.

   • 1946, George Johnston, Skyscrapers in the Mist, page 52:

     [I]t would not be very much less absurd for someone to write about New York City after having spent only a few years or a few decades in this metropolis of inexhaustible adventure, of terrifying emotional fecundity, of uncapturable character.