1. Stimulating interest or thought
   "a thought-provoking book"
   - challenging

See also: stimulating

• linearity
• linearize
• linearly
• lineation
• linebacker
• linebacker blitzing
• linecut
• lined
• lined snake
• linelike
• lineman
• linemen
• linen
• linen basket
• linen paper
• linendraper
• liner
• liner train
• linesman
• lineup
• hub-and-spoke
• hub-and-spoke system
• Hubbard
• hubbard squash
• Hubble