[ fuhngk-shuh-ning ]
See synonyms for functioning on
  1. performing a specified action or activity; working; operating: My son has only one functioning kidney.

  2. (of a person with addiction or other illness or disability) able to cope with everyday life, as at home or at work: a functioning alcoholic with a successful career; functioning diabetics.: See also high-functioning.

Origin of functioning

First recorded in 1835–40; in 1970–75 for def. 2; function (in the sense “to perform an action”) + -ing2

Words Nearby functioning Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use functioning in a sentence