1
as in geese
a silly flighty person
those birdbrains who eagerly adopt every fad diet that comes along
Synonyms & Similar Words
Relevance
Antonyms & Near Antonyms
2
as in morons
a stupid person
some birdbrain left the water running
Synonyms & Similar Words
Antonyms & Near Antonyms
Example Sentences
Recent Examples of Synonyms for birdbrains
Noun
-
They are insulated with feathers from ducks or geese called down.—
BestReviews,
Mercury News,
13 Oct. 2025 -
Bird flu is spreading again, now that wild water fowl — geese, ducks and cranes — have begun their seasonal migrations.—
Evan Bush,
NBC news,
9 Oct. 2025
Noun
-
Brood parasites such as cuckoos lay their eggs in other birds’ nests, tricking the hosts into caring for their offspring at the expense of their own.—
Matthew Martin,
semafor.com,
6 Oct. 2025
Noun
-
To be funny while playing a character who’s sweet and endearing (even when calling his friends idiots) is a skill, and Bad Bunny has it.—
Rima Parikh,
Vulture,
5 Oct. 2025
-
For a bunch of idiots, this did not work out too badly.—
George Caulkin,
New York Times,
2 Oct. 2025
Noun
-
None of this is meant to suggest that a trade is imminent, but if offered the chance to trade these three players for Peralta, the Yankees would be fools not to take it.—
Jackson Roberts,
MSNBC Newsweek,
20 Oct. 2025
-
Sabonis and Zach LaVine are fringe All-Stars most seasons, Keegan Murray is a solid wing starter who shoots and defends, DeRozan can still get midrange buckets and shot-fake fools into heaps of fouls, and Malik Monk is electric in a sixth-man role.—
John Hollinger,
New York Times,
10 Oct. 2025
Noun
-
So that episode will make fun [of] billionaire life-extension body-hacking lunatics.—
Wesley Stenzel,
Entertainment Weekly,
28 Sep. 2025
-
Whether those people are sickened by grief and rage into a kind of temporary insanity, genuine lunatics, hustlers looking to milk a little more engagement or some combination of the three doesn’t really matter.—
Chris Stirewalt,
The Hill,
12 Sep. 2025
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Cite this Entry
“Birdbrains.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/birdbrains. Accessed 23 Oct. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share