seasonable

adjectives

in keeping with the season
"a hard but seasonable frost"; "seasonable clothes"
seasonable
is derived from
seasonableness
antonym
unseasonable
done or happening at the appropriate or proper time
"a timely warning"; "with timely treatment the patient has a good chance of recovery"; "a seasonable time for discussion"; "the book's publication was well timed"
seasonable, timely, well timed, well-timed
is derived from
seasonableness