/ Dictionary / Index S speculative philosophy: Meaning and Definition of Find definitions for: spec'ulative philos'ophy Pronunciation: [key] philosophy embodying beliefs insusceptible of proof and attempting to gain insight into the nature of the ultimate by intuitive or a priori means. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. speculative speculator Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language