Buoyant

1.

(Able to float, cheerful, springy, light) buoyant float ដែលអណ្ដែត
Example: In buoyant spirits, buoyant stride.buoyant liquid ដែលធ្វើឱ្យអណ្ដែត, buoyant spirits ដែលក្លៀវក្លា
Example: The raft would be more buoyant if it was less heavy.

1.

(TRANSITIVE, INTRANSITIVE) Having the quality of rising or floating in a fluid; tending to rise or float; as, iron is buoyant in mercury.

2.

(TRANSITIVE, INTRANSITIVE) Bearing up, as a fluid; sustaining another body by being specifically heavier.

3.

(TRANSITIVE, INTRANSITIVE) Light-hearted; vivacious; cheerful; as, a buoyant disposition; buoyant spirits.

1.

effervescent, light, resilient

2.

animated, blithe, cheerful, elated, hopeful, jocund, lively, spirited, sprightly, vivacious

1.

dejected, depressed, hopeless, sullen