Challenging synonyms | adjectives

Synonyms for Challenging as an Adjective

• difficult

  ambitious
• stimulating

  stretching
• formidable

  difficult, ambitious
• hard

  difficult
• ambitious
• demanding
• thought-provoking
• provocative
• arduous

  difficult
• tough

  difficult
• severe

  ambitious
• strenuous

  difficult
• laborious
• exacting

  demanding
• onerous
• exciting

  stretching
• stiff
• taxing

  demanding
• burdensome
• defiant
• intriguing
• testing

  demanding
• rigorous
• trying
• uphill
• heavy
• exigent

  demanding
• toilsome
• inspiring

  stretching
• daring
• exhausting
• herculean
• rousing
• rough
• provoking
• bold
• insolent
• rebellious
• stimulant
• grueling
• wearisome
• weighty
• interesting
• inspirational

  stretching
• stirring
• tricky
• energizing

  stretching
• effortful
• audacious
• obstinate