Synonyms of the word 
THOUGHT-PROVOKING → CHALLENGING - STIMULATING
thought-provoking
- adj. Interesting in a way that challenges one's beliefs, attitudes, or perspective.
challenging
- v. present participle of challenge.
- adj. Difficult, hard to do.
- n. The act of making a challenge.
stimulating
- adj. Having a manner that stimulates.
- v. present participle of stimulate.
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