What is the opposite of tried and tested?

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Contexts Opposite of proven to be good or workable Opposite of being faithful and devoted in one's support Opposite of reliable and unfailing Opposite of having or demonstrating an unwavering devotion toward someone or something Adjective ▲ Opposite of proven to be good or workable untried unproven untested unproved experimental speculative new unattempted unestablished exploratory trial novel unessayed prototype conjectural in the experimental stage Adjective ▲ Opposite of being faithful and devoted in one's support disloyal treacherous subversive traitorous deceitful seditious unfaithful treasonable betraying double-crossing double-dealing duplicitous faithless false perfidious recreant two-faced two-timing unpatriotic untrue untrustworthy “Edward now regarded the struggle as the suppression of a rebellion of disloyal subjects.” Adjective ▲ Opposite of reliable and unfailing flawed broken imperfect incomplete vulnerable bad distant unhealthy fake inadequate incompetent “Your lack of empathy is a testament to your flawed virtue, of which you should be ashamed.” Adjective ▲ Opposite of having or demonstrating an unwavering devotion toward someone or something fickle disloyal faithless unfaithful irresolute uncertain vacillating perfidious recreant traitorous arbitrary unreliable inconsistent unsettled unstable treacherous indecisive mercurial undependable “I'm pretty fickle when it comes to supporting my country during the Olympics.” Find more words! 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Sentences with the word tried and tested Use our Antonym Finder Nearby Words tried and true tried-and-true tried and trusted tried harder tried to tried to cope with tried trident tricyclic tricky situation tricky trick up