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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

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

Despite the long standing theory, studying these abnormalities has been difficult.

From Science Daily • Mar. 10, 2026

She also hopes the discovery encourages scientists to rethink the long standing assumption that wrinkle structures are created only by photosynthetic microbial mats.

From Science Daily • Mar. 8, 2026

Lab produced beta cells may also solve the long standing shortage of donor tissue.

From Science Daily • Mar. 2, 2026

To resolve this long standing conflict, an international research team led by Dr. M. Eleonora Rossi of the University of Bristol's School of Biological Sciences took a closer look at how sponge skeletons evolved.

From Science Daily • Feb. 28, 2026

This was of such long standing that Abra did not think of her room as a private place.

From "East of Eden" by John Steinbeck

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