Dictionary & Thesaurus

1.

(noun) an addition that was not included in the original plan; "the garage was an afterthought"

Related Words: addition, improver

2.

(noun) thinking again about a choice previously made; "he had second thoughts about his purchase"

Synonyms: reconsideration, rethink, second thought

Related Words: change of mind, flip-flop, reversal, turnabout, turnaround