seasonal
US
UK seasonal adj: (not constant)
SC 季节性的 jì jié xìng de
TC 季節性的
TC 季節性的
The owners of the campsite had to put some of their summer income aside for the winter months, as their trade was seasonal.
nonseasonal, non-seasonal adj: (not relying on the season)
SC 非季节性的 fēi jì jié xìng de
SC 不依赖季节的 fēi jì jié xìng de，bù yī lài jì jié de