1. intellectually productive (Freq. 1) - a prolific writer - a fecund imagination • Syn: fecund, fertile • Similar to: productive • Derivationally related forms: fecundity (for: fecund) 2. bearing in abundance especially offspring - flying foxes are extremely prolific - a prolific pear tree • Syn: fertile • Similar to: fruitful • Derivationally related forms: fertility (for: fertile)