Simple Definition of downer

from our Learner's Dictionary

downer

noun

plural downers
informal
1
: a drug that makes the body relax
especially : barbiturate
I took some downers to help me sleep.
2
: something that is unpleasant or depressing
"His cat just died." "Oh, that's a real downer."
Our conversation about death was a bit of a downer.

Cite this Entry

“Downer.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/downer. Accessed 19 Apr. 2026.

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