buoyant

As adjectives the difference between buoyant and undefined

is that buoyant is having buoyancy; able to float while undefined is lacking a definition or value.

As an adjective buoyant

is having buoyancy; able to float.

As a noun euphoria is

an excited state of joy, a good feeling, a state of intense happiness.

Keen is a related term of buoyant.

As adjectives the difference between keen and buoyant

is that keen is showing a quick and ardent willingness or responsiveness, enthusiastic, eager; interested, intense while buoyant is having buoyancy; able to float.

As a verb keen

is (rare) to sharpen; to make cold or keen can be to utter a keen.

As a noun keen

is a prolonged wail for a deceased person.

Joyous is a related term of buoyant.

As adjectives the difference between joyous and buoyant

is that joyous is full of joy; happy while buoyant is having buoyancy; able to float.

As adjectives the difference between steadfast and buoyant

is that steadfast is fixed or unchanging; steady while buoyant is having buoyancy; able to float.

Buoyant is a related term of hopeful.

As adjectives the difference between buoyant and hopeful

is that buoyant is having buoyancy; able to float while hopeful is feeling hope.

As a noun hopeful is

somebody who is hoping for success or victory.

As adjectives the difference between jocund and buoyant

is that jocund is jovial; exuberant; lighthearted; merry and in high spirits; exhibiting happiness while buoyant is having buoyancy; able to float.

As a proper noun cork

is principal city of county cork.

As an adjective buoyant is

having buoyancy; able to float.

As adjectives the difference between boisterous and buoyant

is that boisterous is full of energy; exuberant; noisy while buoyant is having buoyancy; able to float.

As adjectives the difference between jovial and buoyant

is that jovial is (obsolete) pertaining to jove or zeus; jovian while buoyant is having buoyancy; able to float.