/ Dictionary / Index A aestival: Meaning and Definition of Find definitions for: aes•ti•val Pronunciation: (es'tu-vul, e-stī'- or, esp. Brit., ē'stu-, ē-stī'-), [key] — adj. estival. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: aestival (Thesaurus) aesthetics aestivate Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language