CAVALIERLY
disdainfully, cavalierly
(adverb) in a proud and domineering manner; “he treated his staff cavalierly”
Source: WordNet® 3.1
Etymology
Adverb
cavalierly (comparative more cavalierly, superlative most cavalierly)
In a cavalier manner.
Synonyms
• superciliously
• haughtily
• disdainfully
• curtly
• brusquely
Source: Wiktionary
Cav`a*lier"ly, adv.
Definition: In a supercilious, disdainful, or haughty manner; arroganty.
Junius.
CAVALIER
Cav`a*lier", n. Etym: [F. cavalier, It. cavaliere, LL. caballarius,
fr. L. caballus. See Cavalcade, and cf. Cavallier, Caballine.]
1. A military man serving on horseback; a knight.
2. A gay, sprightly, military man; hence, a gallant.
3. One of the court party in the time of king Charles L. as
contrasted with a Roundhead or an adherent of Parliament. Clarendon.
4. (Fort.)
Definition: A work of more that ordinary heigh, rising from the level
ground of a bastion, etc., and overlooking surrounding parts.
Cav`a*lier", a.
Definition: Gay; easy; offhand; frank.
The plodding, persevering scupulous accuracy of the one, and the
easy, cavalier, verbal fluency of the other, from a complete
contrast. Hazlitt.
2. High-spirited. [Obs.] "The people are naturally not valiant, and
not much cavalier." Suckling.
3. Supercilious; haughty; disdainful; curt; brusque.
4. Of or pertaining to the party of King Charles I. "An old Cavalier
family." Beaconsfleld.
Source: Webster’s Unabridged Dictionary 1913 Edition