SINCE 1828

An Encyclopædia Britannica Company

true-blue

adjective

Definition of true-blue

1 :marked by unswerving loyalty (as to a party)

2 :genuine

a true-blue romantic

See true-blue defined for English-language learners

See true-blue defined for kids

First Known Use of true-blue

circa 1636

true-blue Synonyms

Synonyms

constant, dedicated, devoted, devout, down-the-line, fast, good, loyal, pious, staunch (also stanch), steadfast, steady, true, true-blue

Antonyms

disloyal, faithless, false, fickle, inconstant, perfidious, recreant, traitorous, treacherous, unfaithful, untrue

Related Words

dependable, dutiful, reliable, responsible, solid, tried, tried-and-true, trustworthy, trusty; unfaltering, unhesitating, unwavering; determined, intent, resolute; confirmed, dyed-in-the-wool, inveterate, sworn; ardent, avid, enthusiastic, fervent, fervid, gung ho, impassioned, passionate, serious

Near Antonyms

irresponsible, undependable, unreliable, untrustworthy; faltering, hesitant, vacillating, wavering; dubious, irresolute, shaky, uncertain; apathetic, dispassionate, uninterested

true blue

noun

Definition of true blue

:a person who is true-blue

Origin and Etymology of true blue

from the association of blue with constancy

NEW! Time Traveler

First Known Use: 1647

See Words from the same year

TRUE-BLUE Defined for English Language Learners

true-blue

adjective

Definition of true-blue for English Language Learners

: completely faithful and loyal to a person or an idea
: loyal to the ideas of the British Conservative party

TRUE-BLUE Defined for Kids

true-blue

adjective \ ˈtrü-ˈblü \

Definition of true-blue for Students

:very faithful

Learn More about true-blue

Thesaurus: All synonyms and antonyms for true-blue Nglish: Translation of true-blue for Spanish speakers

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