adverb
1. in accordance with the season
-
it was seasonably cold
• Ant: ↑unseasonably
• Derived from adjective: ↑seasonable
2. at an opportune time
-
your letter arrived apropos
• Syn: ↑timely, ↑well-timed, ↑apropos
• Derived from adjective: ↑seasonable
Useful english dictionary. 2012.