Adjective estival has 1 sense
- aestival, estival - (rare) of or occurring in summer; "the sky was a burnished aestival blue"; "estival winds"
Antonym: autumnal (indirect, via wintry, vernal, summery)
Antonyms: wintry, wintery (indirect, via vernal, summery, autumnal)
Antonym: vernal (indirect, via summery, autumnal, wintry)
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