challenging

1 of 2

adjective

chal·​leng·​ing ˈcha-lən-jiŋ 

1

: arousing competitive interest, thought, or action

a challenging course of study

a challenging job

2

: invitingly provocative : fascinating entry 1

a challenging personality

challenging questions

challengingly

ˈcha-lən-jiŋ-lē 

adverb

challenging

2 of 2

present participle of challenge entry 1

Synonyms of challenging

Adjective

• difficult
• tough
• rigorous
• demanding
• hard

Examples of challenging in a Sentence

Adjective

I find the job challenging and fun.

Teaching is challenging but rewarding work.

It's a challenging book that requires careful reading.

The slope was challenging for even the most experienced climbers.

Recent Examples on the Web

Adjective

As Hispanic Heritage Month continues, one musician at Philadelphia's Curtis Institute of Music is challenging expectations about classical music and the harp. — Madeleine Wright, CBS News, 16 Oct. 2026

Naomi Ackie, who plays the scientist charged with Hagen’s experimental procedure, praised how her co-star shouldered what was a very challenging role. — Chris Gardner, HollywoodReporter, 16 Oct. 2026

For the right project, incorporating EB-5 alongside appropriate oversight, experienced professionals and strong compliance procedures could help developers navigate a challenging financing environment and move projects toward completion. — Jill Jones, Forbes.com, 16 Oct. 2026

As temperatures drop, heavy cloud systems move through the area, making sightings more challenging. — Daisy Dobrijevic, Space.com, 16 Oct. 2026

Word History

Etymology

Adjective

see challenge entry 1

First Known Use

Adjective

1841, in the meaning defined at sense 1