cavalier

cavalier is a   Noun

Definition:

[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] A work of more that ordinary heigh, rising from the level ground of a bastion, etc., and overlooking surrounding parts.

Synonyms: