- Relating to the summer.
- Of weather, typical of summer.
- (relating to the summer):: aestival, estival, summer (as a modifier)
- (of weather, typical of summer):: summerish, summerlike, summerly
aestival, arctic, autumn, autumnal, beryl-green, berylline, blood-hot, blood-warm, blue-green, bluish-green, boreal, brumal, calid, canicular, chartreuse, chloranemic, chlorine, chlorotic, citrine, citrinous, emerald, equatorial, equinoctial, foliaged, genial, glaucescent, glaucous, glaucous-green, grassy, green, green as grass, green-blue, greenish, greenish-blue, greenish-yellow, greensick, hibernal, hiemal, holly, ivy, ivy-green, leafy, leaved, luke, lukewarm, midsummer, midwinter, mild, olivaceous, olive, olive-green, out of season, porraceous, room-temperature, seasonal, smaragdine, solstitial, spring, springlike, subtropical, summer, summerlike, summerly, sunny, sunshiny, temperate, tepid, thermal, thermic, toasty, tropical, unfrozen, verdant, verdurous, vernal, vernant, vert, virescent, warm, warm as toast, warmish, winter, winterlike, wintery, wintry, yellowish-green