au·tum·nal
adjective/ɔːˈtʌmnəl/
/ɔːˈtʌmnəl/
[usually before noun]- like or connected with autumn
秋天的；秋季的 - autumnal colours
秋天的色彩
Oxford Collocations DictionaryAutumnal is used with these nouns:- chill
- colour
Word Originlate 16th cent.: from Latin autumnalis, from autumnus ‘autumn’. - autumnal colours