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
Relevance
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
-
Federal prosecutors in Alabama secured an 11-count indictment accusing the organization of paying millions of dollars to some of those undercover informants and hiding the real purpose of the payments from its donors.—
Josh Meyer,
USA Today,
25 Apr. 2026 -
As Ballmer sees it, Sanberg agreed to cooperate in exchange for the league submitting a favorable sentencing letter to Judge Wilson, and thus he shouldn’t be regarded as a credible informant.—
Michael McCann,
Sportico.com,
24 Apr. 2026
Noun
-
And so every regime invests in having student informers.—
Anne Applebaum,
The Atlantic,
23 Jan. 2026
-
The whole family is deeply involved in the revolutionary movement: the oldest son disappears into Siberia, never to be seen or heard of again, while the youngest, eighteen, is jailed together with his father, and executed after his cell is exposed by an informer.—
Literary Hub,
Literary Hub,
22 Jan. 2026
Noun
-
There’s an almost-friendship-ending rift over husbands (Brent Thiessen is Cee Cee’s, a cool-guy theater director; Ben Jacoby is Bertie’s, a rich jerk) that feels deeply dated and, in the context of the women’s tell-each-other-everything friendship, just plain weird.—
Sara Holdren,
Vulture,
23 Apr. 2026
-
The jerk chicken is rubbed in a sweet honey glaze.—
Jenn Harris,
Los Angeles Times,
20 Apr. 2026
Noun
-
Vanessa Beecroft was a canary in the coal mine, merging, subverting, and exploiting art, fashion, money, and spectacle.—
Jerry Saltz,
Vulture,
20 Apr. 2026
-
Freund said that influencers may be a canary in the coal mine for problems that all of us might soon face with the rise of this tech.—
Taylor Lorenz,
Vanity Fair,
15 Apr. 2026
Noun
-
In recent years, Ed Sheeran slipped behind the counter, gamely slinging dogs and taking his fair share of abuse from the staff.—
Jimmy Jellinek,
SPIN,
27 Apr. 2026
-
During the day, McKinley Park is filled with activity, from dog walkers and joggers to families enjoying the outdoors.—
Conor McGill,
CBS News,
27 Apr. 2026
Noun
-
Once an unconscious stool pigeon, always an unconscious stool pigeon.—
Howie Carr,
Boston Herald,
12 Nov. 2025
-
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
-
There’s some Streisand, too, and a big dose of Andrea Martin, specifically Martin’s signature SCTV character Edith Prickley, that bawdy, gawdy ham with all the bravado of a Catskills clown.—
Greg Evans,
Deadline,
22 Apr. 2026
-
Once completed, the $5 million acquisition will ensure the theater has a permanent home, a place where skateboarding clowns and leek-haired onions can continue to frolic and dance for decades to come.—
Todd Martens,
Los Angeles Times,
13 Apr. 2026
Noun
-
The Angels went to bat against the rats, announcing that cleaning crews would get to work an hour after each game instead of waiting until the next morning.—
Steve Henson,
Los Angeles Times,
28 Apr. 2026
-
The Los Angeles Angels have seemingly traded the rally monkey in for alley rats.—
Alejandro Avila OutKick,
FOXNews.com,
28 Apr. 2026
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
“Rat fink.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/rat%20fink. Accessed 30 Apr. 2026.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
