Definition of self-flattered in English:

self-flattered

Pronunciation /ˌsɛl(f)ˈflatəd/

adjective

  • Persuaded by oneself into a falsely high opinion of one's own achievements, powers, or influence; flattered by oneself. Also (of an attribute): falsely elevated by self-flattery.

Origin

Mid 17th century; earliest use found in William Jenkyn (bap. 1613, d. 1685), nonconformist minister. From self- + flattered.