v. t. [ imp. & p. p. Chagrined p. pr. & vb. n. Chargrining. ] [ Cf. F. chagriner See Chagrin, n. ] To excite ill-humor in; to vex; to mortify; as, he was not a little chagrined. [ 1913 Webster ]

n. [ F., fr. chagrin shagreen, a particular kind of rough and grained leather; also a rough fishskin used for graters and files; hence (Fig.), a gnawing, corroding grief. See Shagreen. ] Vexation; mortification. [ 1913 Webster ]

I must own that I felt rather vexation and chagrin than hope and satisfaction. Richard Porson. [ 1913 Webster ]

Hear me, and touch Belinda with chagrin. Pope.

Syn. -- Vexation; mortification; peevishness; fretfulness; disgust; disquiet. Chagrin, Vexation, Mortification. These words agree in the general sense of pain produced by untoward circumstances. Vexation is a feeling of disquietude or irritating uneasiness from numerous causes, such as losses, disappointments, etc. Mortification is a stronger word, and denotes that keen sense of pain which results from wounded pride or humiliating occurrences. Chagrin is literally the cutting pain produced by the friction of Shagreen leather; in its figurative sense, it varies in meaning, denoting in its lower degrees simply a state of vexation, and its higher degrees the keenest sense of mortification.

“Vexation arises chiefly from our wishes and views being crossed: mortification, from our self-importance being hurt; chagrin, from a mixture of the two.” Crabb. [ 1913 Webster ]

v. i. To be vexed or annoyed. Fielding. [ 1913 Webster ]

a. Chagrined. Dryden. [ 1913 Webster ]

adj. feeling vexed, especially due to feeling inferior or unworthy and hence embarrassed; as, chagrined at the poor sales of his book.
Syn. -- embarrassed, mortified. [ WordNet 1.5 ]