adj. Like Thraso (a character in the play Eunuchus by Terence); boastful, bragging, vainglorious.
the GNU version of the Collaborative International Dictionary of English
adj. Of or pertaining to Thraso; like, or becoming to, Thraso; bragging; boastful; vainglorious.
The Century Dictionary and Cyclopedia
Given to bragging; boasting; vainglorious.
Proceeding from or exhibiting ostentation; ostentatious; boasting.
Word Usage
"Let your extemporaneous descantings and unpremeditated expatiations have intelligibility and veracious vivacity, without rhodomontade or thrasonical bombast."