Synset

done or happening at the appropriate or proper time
<adj.all>   (a)   (p)   freq. cnt.: 1 freq. cnt.: 1

seasonable

timely

well timed

well-timed

sample sentences

"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"