down–the–line

firm in one's allegiance to someone or something a down-the-line supporter of the Republican Party Synonyms constant, dedicated, devoted, devout, down-the-line, fast, good, loyal, pious, staunch (also stanch), steadfast, steady, true, true-blueRelated 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, seriousNear Antonyms irresponsible, undependable, unreliable, untrustworthy; faltering, hesitant, vacillating, wavering; dubious, irresolute, shaky, uncertain; apathetic, dispassionate, uninterestedAntonyms disloyal, faithless, false, fickle, inconstant, perfidious, recreant, traitorous, treacherous, unfaithful, untrue