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erstwhile

American  
[urst-hwahyl, -wahyl] / ˈɜrstˌʰwaɪl, -ˌwaɪl /

adjective

  1. former; of times past.

    erstwhile friends.

    Synonyms:
    previous, bygone, past
    Antonyms:
    present, current

adverb

  1. Archaic. formerly; erst.

erstwhile British  
/ ˈɜːstˌwaɪl /

adjective

  1. former; one-time

    my erstwhile companions

"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

adverb

  1. archaic long ago; formerly

"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 erstwhile

First recorded in 1560–70; erst + while

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.

He suggests that if the tech sector does start to meaningfully falter this may deliver a psychological shift among investors whereby the erstwhile winners are given the losers tag.

From MarketWatch

Suddenly, their erstwhile insignificant finale against Arizona on Sunday is vitally important.

From Los Angeles Times

Among the squad of friends, family, Hall of Fame athletes and erstwhile colleagues who contribute to “Boo-Yah: A Portrait of Stuart Scott,” a couple of consistent points get made.

From The Wall Street Journal

Time was when a literary score-settling by erstwhile lovers like Philip Roth and Claire Bloom took months or years to play out.

From The Wall Street Journal

Willem-Alexander said the Netherlands was eager to deepen ties with its erstwhile colony "based on equality and mutual respect."

From Barron's