The Difference Between Abashed and Unabashed

To abash someone is to shake up their self-possession, as illustrated by Charlotte Brontë in her 1849 novel Shirley: "He had never blushed in his life; no humiliation could abash him." When you are unabashed you make no apologies for your behavior (nor do you attempt to hide or disguise it), but when you are abashed your confidence has been thrown off and you may feel rather inferior or ashamed of yourself. English speakers have been using abashed to describe feelings of embarrassment since the 14th century, but they have only used unabashed (brazenly or otherwise) since the 15th century (not that there’s anything wrong with that).