inexhaustible
[adjective]
Synonyms: indefatigable, tireless, unflagging, untiring, unweariable, unwearying, weariless

[TahlilGaran] English Synonym Dictionary ▲

in‧ex‧haus‧ti‧ble /ˌɪnɪɡˈzɔːstəbəl◂, ˌɪnɪɡˈzɔːstɪbəl◂ $ -ˈzɒːs-/ adjective
something that is inexhaustible exists in such large amounts that it can never be finished or used up:
She has an inexhaustible supply of funny stories.
a man of inexhaustible energy

[TahlilGaran] Dictionary of Contemporary English ▲

inexhaustible
adj.
VERBS be, seem Her energy seemed inexhaustible.
ADV. virtually | apparently, seemingly

[TahlilGaran] Collocations Dictionary ▲