challenging

chal·leng·ing  (chln-jng)

adj.

1. Calling for full use of one's abilities or resources in a difficult but stimulating effort: a challenging course of study; a challenging role for an inexperienced performer.

2. Absorbing; intriguing: a challenging idea.

Thesaurus

Adj.	1.	challenging - requiring full use of your abilities or resources; "ambitious schedule"; "performed the most challenging task without a mistake" ambitious difficult, hard - not easy; requiring great physical or mental effort to accomplish or comprehend or endure; "a difficult task"; "nesting places on the cliffs are difficult of access"; "difficult times"; "why is it so hard for you to keep a secret?"
	2.	challenging - stimulating interest or thought; "a challenging hypothesis"; "a thought-provoking book" thought-provoking stimulating - rousing or quickening activity or the senses; "a stimulating discussion"
	3.	challenging - disturbingly provocative; "an intriguing smile" intriguing provocative - serving or tending to provoke, excite, or stimulate; stimulating discussion or exciting controversy; "a provocative remark"; "a provocative smile"; "provocative Irish tunes which...compel the hearers to dance"- Anthony Trollope

Translations

challenging [ˈtʃælɪndʒɪŋ] adj → que supone un reto; [tone] → de desafío

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challenging [ˈtʃælɪndʒɪŋ] challenge adj [task, career] → qui représente un défi or une gageure; [tone, look] → de défi, provocateur/trice

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challenging [ˈtʃælɪndʒɪŋ] challenge adj (career, task) → anspruchsvoll;

(tone, look etc) → herausfordernd

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challenging [ˈtʃælɪndʒɪŋ] adj → sfidante; [remark, look] → provocatorio/a