Synonyms of strenuous in English:

strenuous


See US English definition of strenuous

See UK English definition of strenuous

See Spanish definition of agotador

adjective

1‘it's a pretty strenuous climb’

SYNONYMS
arduous, difficult, hard, tough, taxing, demanding, exacting, uphill, stiff, formidable, heavy, exhausting, tiring, fatiguing, gruelling, back-breaking, murderous, punishing
informal no picnic, killing
British informal knackering
archaic toilsome
ANTONYMS

easy, effortless

2‘the college has made strenuous efforts to attract overseas students’

SYNONYMS
vigorous, energetic, active, enthusiastic, keen, zealous, forceful, strong, Herculean, spirited, dynamic, intense, determined, resolute, tenacious, tireless, stout, indefatigable, unremitting, dogged, pertinacious
ANTONYMS

half-hearted, feeble