Synonyms to red-letter

observable, apparent, appreciable, beholdable, clear, clear as crystal, crystal-clear, detectable, discernible, disclosed, distinct, evident, explicit, exposed, exposed to view, express, hanging out, in evidence, in full view, in plain sight, in view, indisputable, indubitable, insight, manifest, memorable, naked, notable, noticeable, obvious, open, open to view, open-and-shut, outcropping, palpable, patent, perceivable, perceptible, perspicuous, plain, plain as day, recognizable, revealed, rubric, seeable, self-evident, self-explaining, self-explanatory, sensible, showing, tangible, to be seen, transparent, unclouded, unconcealed, undisguised, unhidden, unmistakable, viewable, visible, visual, witnessable, catchy, celebrated, conspicuous, deathless, distinguished, eminent, esteemed, estimable, eventful, exceptional, extraordinary, great, historic, illustrious, important, marked, momentous, noble, noteworthy, of mark, outstanding, prestigious, prominent, rare, recollectable, remarkable, rememberable, reputable, salient, signal, significant, sp