| n. | 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 I. as contrasted with a Roundhead or an adherent of Parliament. | |
| 4. | (Fort.) A work of more than ordinary height, rising from the level ground of a bastion, etc., and overlooking surrounding parts. | |
| a. | 1. | offhand; unceremonious; gay; easy; frank. Opposed to |
| 2. | High-spirited. | |
| 3. | Supercilious; haughty; disdainful; curt; brusque. | |
| 4. | Of or pertaining to the party of King Charles I. |
| Noun | 1. | cavalier - a gallant or courtly gentleman Synonyms: chevalier |
| 2. | Cavalier - a royalist supporter of Charles I during the English Civil War | |
| Adj. | 1. | cavalier - given to haughty disregard of others Synonyms: high-handed |