faithless applies to any failure to keep a promise or pledge or any breach of allegiance or loyalty.
faithless allies
false stresses the fact of failing to be true in any manner ranging from fickleness to cold treachery.
betrayed by false friends
disloyal implies a lack of complete faithfulness to a friend, cause, leader, or country.
disloyal to their country
traitorous implies either actual treason or a serious betrayal of trust.
traitorous acts punishable by death
treacherous implies readiness to betray trust or confidence.
a treacherous adviser
perfidious adds to faithless the implication of an incapacity for fidelity or reliability.
a perfidious double-crosser
Example Sentences
Adjective Indicate whether each of the following statements is true or false. He registered at the hotel under a false name.
Recent Examples on the Web
Adjective
Gableman and Michels are backed by former President Donald Trump and have promoted Trump's false claims about widespread voter fraud and irregularities manipulating the outcome of the 2020 election. Molly Beck, Journal Sentinel, 19 Sep. 2022 All but two - incumbent senators Ron Johnson of Wisconsin and Marco Rubio of Florida - have publicly embraced Trump’s false claims about 2020, according to a Post analysis.Anchorage Daily News, 18 Sep. 2022 Republican leaders, including House Minority Leader Kevin McCarthy of California, Sen. Ted Cruz of Texas and Rep. Marjorie Taylor Greene of Georgia, have tweeted false claims about how many workers the agency intends to hire. Fatima Hussein, Baltimore Sun, 16 Sep. 2022 His remarks, however, come shortly after Bolduc won the Republican nomination this week -- and after months of campaigning on false claims that the 2020 election was stolen from former President Donald Trump. Alexandra Meeks, CNN, 16 Sep. 2022 Their primary was marred by false election denial claims by Perdue that echoed Trump in baselessly alleging that Kemp was responsible for Trump's 2020 loss in the state. Rick Klein, ABC News, 15 Sep. 2022 Republican leaders, including House minority leader Kevin McCarthy of California, Senator Ted Cruz of Texas, and Representative Marjorie Taylor Greene of Georgia, have tweeted false claims about how many workers the agency intends to hire. Fatima Hussein, BostonGlobe.com, 15 Sep. 2022 Some of the false claims were filed using the names of dockworkers’ family members, including spouses and children.Los Angeles Times, 15 Sep. 2022 Researchers found that TikTok’s own search tool seems designed to steer users to false claims in some cases. David Klepper, Chicago Tribune, 14 Sep. 2022
Adverb
There’s false-toothed Sarah Paulson as Linda Tripp in Impeachment: American Crime Story. Alison Willmore, Vulture, 23 Nov. 2021 With time winding down in a scoreless game, the Gladiators made the most of a penalty corner when two of the four Hereford defenders false-started, crossing the goal line before the ball was put in play. Rich Scherr, baltimoresun.com, 13 Nov. 2021 Browns offensive linemen false-started three times in the game — once by Wyatt Teller and twice by Joel Bitonio — and Stefanski vowed to correct it.cleveland, 4 Jan. 2021 The 49ers’ chances to keep the game close fizzled late when a touchdown was overturned, and Nick Mullens false-started on a sneak at the goal line and then threw an interception. Ann Killion, SFChronicle.com, 7 Dec. 2020 The drive started with left tackle Charles Leno false-starting.Star Tribune, 10 Nov. 2020 Alabama coach Nick Saban said Saturday the school conducted 240 tests of its football players and none came positive after his potentially false-positive COVID-19 test Wednesday. Mike Rodak | Mrodak@al.com, al, 17 Oct. 2020 Meanwhile, forcing axioms, which deem the continuum hypothesis false by adding a new size of infinity, would also extend the frontiers of mathematics in other directions.Quanta Magazine, 26 Nov. 2013 Any assertion otherwise on the latter front rings false given that, as acting commissioner, Selig had to have known about the FBI’s Operation Equine, an early ’90s investigation into PED distribution that included McGwire and Canseco. Jay Jaffe, SI.com, 13 Dec. 2017 See More
Word History
Etymology
Adjective and Adverb
Middle English fals, faus, from Anglo-French & Latin; Anglo-French, from Latin falsus, from past participle of fallere to deceive