Synonyms of challenging in English:

challenging


See US English definition of challenging

See UK English definition of challenging

See Spanish definition of desafiante

adjective

1‘an interesting, worthwhile, and challenging job’

SYNONYMS
demanding, testing, taxing, exacting, exigent, searching
stretching, exciting, stimulating, inspiring, energizing, inspirational
difficult, tough, hard, heavy, stiff, formidable, onerous, arduous, laborious, burdensome, strenuous, gruelling
ANTONYMS

easy, uninspiring