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Synonyms

long-standing

British  

adjective

  1. existing or in effect for a long time

"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

Example Sentences

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The experiment also required the researchers to solve a long-standing problem in quantum engineering: measuring what is happening inside a quantum system without disrupting the delicate state being measured.

From Science Daily ● Sep. 22, 2026

Davidson told The Times she has long-standing concerns about Butts’ conduct.

From Los Angeles Times ● Sep. 22, 2026

After his return to the White House last year, US President Donald Trump imposed sweeping global tariffs, including on long-standing trade allies such as the UK.

From BBC ● Sep. 21, 2026

I personally think it’s a green flag that he isn’t willing to change a long-standing tradition for someone he met so recently.

From MarketWatch ● Sep. 19, 2026

“No boxes in the cells!” cried the little guard in Dutch, as indignantly as though this had been a long-standing rule.

From "The Hiding Place" by Corrie ten Boom

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