Retentive/rɪˈtentɪv/ Definition 1 of 4Pro Tip 1/3Memory Focus Emphasizes someone's skill to remember information over long periods. Her retentive mind helped her ace all exams. Pro Tip 2/3Not Temporary Indicates lasting memory, not just for a brief time. A retentive memory means not having to review notes often. Pro Tip 3/3Impressive Capacity Suggests an exceptional ability to remember things, beyond average. His retentive abilities wowed everyone at the trivia night.