Noun
the letter A in red; Puritans required adulterers to wear it
Source: WordNet“If I could brand them with a scarlet letter on their forehead I would, because I don’t want any woman hurt like that again.” Source: Internet
It’s harder to prove that friendship has made a reporter a pushover for his sources, so platonic relationships tend to go uncontested, and we stupidly reserve the scarlet letter of lost impartiality for romancing journalists only. Source: Internet