counterpart; equivalent: New members with an interest in folk art will find their opposite numbers in the association's directory.
These Common Words Have Some Very Uncommon OppositesYou know up is the opposite of down, but do you know the antonyms of ambidextrous and placebo? English isn't always black and white.
Origin of opposite number
First recorded in 1905–10
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for opposite number
a person holding an equivalent and corresponding position on another side or situation
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