afterthought

[ af-ter-thawt, ahf- ]
/ ˈæf tərˌθɔt, ˈɑf- /

noun

a later or second thought; reconsideration.
reflection after an act; an appropriate explanation, answer, expedient, or the like, conceived of too late for the occasion.
something added, as a part or feature, that was not included in the original plan or design: The vestry was added to the church as an afterthought.

Origin of afterthought

First recorded in 1655–65; after + thought1

Example sentences from the Web for afterthought

British Dictionary definitions for afterthought

afterthought
/ (ˈɑːftəˌθɔːt) /

noun

a comment, reply, etc, that occurs to one after the opportunity to deliver it has passed
an addition to something already completed