Thesaurus Intellectual Share definition Flag Someone who uses big words, often unnecessarily, in order to seem smarter than they are. I can't stand talking to Bart about anything serious, he's such a thesaurus intellectual. Thesaurus Intellectual by Haunton Romilly August 24, 2018 0 0 Get merch Get the Thesaurus Intellectual mug. Buy Now — $32.95 See more merch