Functioning
Functioning adjective - Being in effective operation.
Usage example: looked for a functioning washing machine, but the few that weren't broken were in use
Useless is an antonym for functioning.
Useless
Useless adjective - Not capable of being put to use or account.
Usage example: a garage full of useless junk
Functioning is an antonym for useless.
Both words in one sentence
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However, it only did so with dumb luck as its opponent was having functioning issues and was rendered useless in its fight.
Source: Series / BattleBots -
The truth is that his real body is a shriveled, useless thing that lives permanently in a life support tank, with little more than the heart and brain functioning.
Source: Dark Lord on Life Support -
Reed Richards Is Useless: He's perfected a functioning time machine, and all he can think to do with it is steal some treasure from Dracula?
Cite this Source
Useless and Functioning. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/functioning/useless
Functioning & Useless. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/functioning/useless>.
Useless or Functioning. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/functioning/useless.
Google Ngram Viewer shows how "functioning" and "useless" have occurred on timeline