aestival
[es-tuh-vuhl, e-stahy-, ee-stuh-, ee-stahy-]
/ ˈɛs tə vəl, ɛˈstaɪ-, ˈi stə-, iˈstaɪ- /
From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.