1
as in informant
a person who provides information about another's wrongdoing
who's the sorry rat fink that went squealing to the cops?
Synonyms & Similar Words
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2
as in bastard
a person whose behavior is offensive to others
regrets ever doing business with that rat fink, who cheated him out of gobs of money
Synonyms & Similar Words
Antonyms & Near Antonyms
Example Sentences
Recent Examples of Synonyms for rat fink
Noun
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Maria is under police protection as a confidential informant, according to the Mexican officer.—
Kevin Maurer,
Rolling Stone,
13 Jan. 2026 -
The only ones awaiting sentence are those who became government informants and testified against former colleagues in law enforcement.—
Nate Gartrell,
Mercury News,
12 Jan. 2026
Noun
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Frizer and Skeres were fraudsters, and the sinister Poley was an informer, crucial to the exposure of the Babington Plot.—
Anthony Lane,
New Yorker,
8 Sep. 2025
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Option 2: If one prisoner informs while the other stays silent, the informer will go free while the silent one receives the harshest sentence.—
Michael Ashley,
Forbes.com,
29 July 2025
Noun
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For those with less-briny palates, a fine jerk chicken and a number of steak cuts are also available.—
Jesse Ashlock,
Condé Nast Traveler,
7 Jan. 2026
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Mike’s older sister, Nancy (Natalia Dyer), is our entry point to Hawkins High; a pretty striver, she’s recently been distracted from academics by a fling with popular jerk Steve Harrington (Joe Keery).—
Judy Berman,
Time,
26 Dec. 2025
Noun
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There is also growing concern within the House Republican caucus that Greene’s announcement is a canary in the coal mine and that multiple resignations will follow.—
Charlie Hunt,
The Conversation,
26 Dec. 2025
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So is the Broomfield condo market the canary in the coal mine for the larger metro Denver housing market, a signal that the oxygen is gone and that home prices could fall across the region next year?—
Aldo Svaldi,
Denver Post,
23 Dec. 2025
Noun
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And, the dog attacked again after the owner failed to secure the dog in a separate room.—
Adam Thompson,
CBS News,
13 Jan. 2026
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Another 24 dogs were found emaciated inside, the Lee County Sheriff's Office said in a statement.—
Madison E. Goldberg,
PEOPLE,
13 Jan. 2026
Noun
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Once an unconscious stool pigeon, always an unconscious stool pigeon.—
Howie Carr,
Boston Herald,
12 Nov. 2025
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Russo turned stool pigeon within a month of his November 2017 arrest for selling a kilo of cocaine to an undercover agent.—
John Annese,
New York Daily News,
26 Feb. 2025
Noun
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Brewer depicts the world of music impersonators with a fair amount of affection, like the rodeo clowns of late 20th-century America.—
Peter Tonguette,
The Washington Examiner,
9 Jan. 2026
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Cirque du Soleil is known for its shows featuring acrobats, athletes and clowns – all doing spectacular feats.—
Brian Steinberg,
Variety,
8 Jan. 2026
Noun
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The powerful anticoagulant rat poisons at issue here make up only a handful of products.—
Arkansas Online,
Arkansas Online,
20 Jan. 2026
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There Are About 20 Species of Hamsters Hamsters belong to the family Cricetidae, which includes voles and lemmings as well as rats and mice.—
Noel Kirkpatrick,
Treehugger,
20 Jan. 2026
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Cite this Entry
“Rat fink.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/rat%20fink. Accessed 22 Jan. 2026.
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