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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Hobart Police Detective Wendell Hite wrote that police dropped off a criminal informant outside the mall to buy drugs from Larkin in a black Lincoln in the parking lot.—
Meredith Colias-Pete,
Chicago Tribune,
24 Jan. 2026 -
Adrian Jimenez, 44, met Espinoza Martinez through his small construction business, but that witness has a felony record and – unbeknownst to the Martinez – has also been working as a police informant since the 1990s.—
Sara Machi,
CBS News,
21 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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Drift through the crowd as the smell of smoky jerk chicken and grilled cheese mingles with fresh lumpia, vegan soul bowls, and small-batch kombucha.—
Lewis Nunn,
Forbes.com,
22 Jan. 2026
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The Store offers flavors such as buffalo, garlic parmesan, barbecue, sweet chili, Torrington Hot, mango habanero, Jamaican jerk, spicy harissa, lemon pepper, Marsala, spicy Mediterranean, Tunisian buffalo and garlic hot.—
Pamela McLoughlin,
Hartford Courant,
22 Jan. 2026
Noun
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While Chicago is the canary in the coal mine, the legislative resistance to choice affects the entire state.—
The Editorial Board,
Chicago Tribune,
22 Jan. 2026
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Against a backdrop of teak wood and bamboo, driftwood bedposts make the mosquito nets look like chic bed drapes, while canary-yellow day beds and blinds add a ray of sunshine to even the dreariest days.—
Chris Schalkx,
Condé Nast Traveler,
12 Jan. 2026
Noun
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However, one quick look at what companies like Boston Dynamics has achieved with robots like the rather creepy dog-like ‘Spot,’ who herds sheep in New Zealand, and the possibilities seem endless.—
Peter Lyon,
Forbes.com,
27 Jan. 2026
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While dogs and wolves are genetically almost indistinguishable, the biologist John Bradshaw has studied how vastly different their behavior is.—
Literary Hub,
Literary Hub,
27 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 only animals Cook’s crew saw apart from wild birds were rats and chickens, both eaten.—
Literary Hub,
Literary Hub,
28 Jan. 2026
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Testing the powder on rats fed a high-sugar diet, the team found that brushing with BSCT for just one minute a day was enough to restore the rats' oral microbiome, reduce inflammation, and kill the bacteria that causes periodontitis.—
New Atlas,
New Atlas,
27 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 30 Jan. 2026.
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