Quick definitions from WordNet (challenging)
▸ adjective: disturbingly provocative
▸ adjective: stimulating interest or thought ("A challenging hypothesis")
▸ adjective: requiring full use of your abilities or resources ("Performed the most challenging task without a mistake")
▸ Also see challenging
▸ Words similar to challenges
▸ Usage examples for challenges
▸ Popular nouns described by challenges
▸ Words that often appear near challenges
▸ Rhymes of challenges
▸ Invented words related to challenges
▸ adjective: disturbingly provocative
▸ adjective: stimulating interest or thought ("A challenging hypothesis")
▸ adjective: requiring full use of your abilities or resources ("Performed the most challenging task without a mistake")
▸ Also see challenging
▸ Words similar to challenges
▸ Usage examples for challenges
▸ Popular nouns described by challenges
▸ Words that often appear near challenges
▸ Rhymes of challenges
▸ Invented words related to challenges