adjective
Synonyms: indefatigable , inexhaustible, unflagging, untiring, unweariable, unwearying, weariless
Related Word: active, enthusiastic
Contrasted words: inactive, listless, tired, unenergetic, unenthusiastic, weak
adjective
Synonyms: indefatigable , inexhaustible, unflagging, untiring, unweariable, unwearying, weariless
Related Word: active, enthusiastic
Contrasted words: inactive, listless, tired, unenergetic, unenthusiastic, weak
Merriam Webster. Collegiate thesaurus English vocabulary. Английский энциклопедический словарь тезаурус. 2003