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afterthought

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

noun

  1. a later or second thought; reconsideration.

  2. reflection after an act; an appropriate explanation, answer, expedient, or the like, conceived of too late for the occasion.

  3. 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.


afterthought British  
/ ˈɑːftəˌθɔːt /

noun

  1. a comment, reply, etc, that occurs to one after the opportunity to deliver it has passed

  2. an addition to something already completed

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of afterthought

First recorded in 1655–65; after + thought 1

Explanation

An afterthought is something you think of or add later. You might quickly wrap a gift and then stick a bow on it as an afterthought just before you hand it to the birthday boy. Sometimes calling something an afterthought is a bit of an insult — a movie reviewer might complain that female characters seem added on as afterthoughts, or a diner at a fancy restaurant could note that while the meat is well-cooked, the vegetables are nothing but an afterthought. This word has been used since the 1600s, a compound of after and thought.

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Vocabulary lists containing afterthought

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Dear Amy: Wow, you really missed the mark to "Family Afterthought," who was having a milestone birthday on Thanksgiving this year and wanted to finally have a birthday and not share it with a holiday.

From Washington Post • Nov. 4, 2021

To Sell Apartments, Furnishing Is No Afterthought It wasn’t just the swinging chair, strung from the ceiling, that was distracting.

From New York Times • Oct. 4, 2010

A Negro community group from Chicago's South Side tells the Christmas story in original contemporary soul music in "Time Is Running Out: An Afterthought to Christmas," a swinging look at the season.

From Time Magazine Archive

His name was Prometheus, which means Forethought; his brother’s was Epimetheus, or Afterthought; their father was Iapetus. 

From Aunt Charlotte's Stories of Greek History by Yonge, Charlotte Mary

"I always begin," said Ethelinda Afterthought, "with a study."

From Frenzied Fiction by Leacock, Stephen