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