Search Result for "thought-provoking": 
Wordnet 3.0

ADJECTIVE (1)

1. stimulating interest or thought;
- Example: "a challenging hypothesis"
- Example: "a thought-provoking book"
[syn: challenging, thought-provoking]



WordNet (r) 3.0 (2006):

thought-provoking
    adj 1: stimulating interest or thought; "a challenging
           hypothesis"; "a thought-provoking book" [syn:
           challenging, thought-provoking]