challenging

adjective  B2
Plain meaning

difficult, but often in a way that makes you learn or improve

Exam-register meaning

demanding significant effort, skill, or resources

In context
generalThe course was challenging, but I enjoyed it.
examProviding healthcare in remote areas remains challenging because of staff shortages and poor transport links.
Common collocations
challenging taskchallenging environmentchallenging role
Watch out
Do not say 'challengeful'. Use 'challenging'.
Word family
challenge (noun/verb)challenger (noun)challengingly (adverb)
Quick check — can you use it?

Teaching mixed-level classes can be  ______  for new teachers.

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