blithe

Blithe is a synonym of casual.

As adjectives the difference between blithe and casual

is that blithe is (dated or literary) happy, cheerful while casual is happening by chance.

As a noun casual is

(british|nz) a worker who is only working for a company occasionally, not as its permanent employee.

Blithe is a synonym of unconscious.

As adjectives the difference between blithe and unconscious

is that blithe is (dated or literary) happy, cheerful while unconscious is not awake; having no awareness.

As a noun unconscious is

(psychology) the unconscious mind.

Blithe is a synonym of carefree.

As adjectives the difference between blithe and carefree

is that blithe is (dated or literary) happy, cheerful while carefree is without cares; free of concern or worries; easy; casual; without difficulty.

As adjectives the difference between blithe and jovial

is that blithe is dated or literary Happy, cheerful while jovial is pertaining to Jove or Zeus; Jovian.

As an adjective blithe

is (dated or literary) happy, cheerful.

As a noun grave is

cave, den, lair.

As adjectives the difference between mirthful and blithe

is that mirthful is filled with mirth while blithe is dated or literary Happy, cheerful.

As adjectives the difference between blithe and contented

is that blithe is (dated or literary) happy, cheerful while contented is satisfied.

As a verb contented is

(content).

Blithe is a synonym of radiant.

As adjectives the difference between blithe and radiant

is that blithe is (dated or literary) happy, cheerful while radiant is radiating light and/or heat.

As a noun radiant is

a point source from which radiation is emitted.

Hot is a related term of blithe.

As a noun hot

is a whit, a bit.

As an adjective blithe is

(dated or literary) happy, cheerful.

As adjectives the difference between brisk and blithe

is that brisk is full of liveliness and activity; characterized by quickness of motion or action; lively; spirited; quick while blithe is dated or literary Happy, cheerful.

As a verb brisk

is to make or become lively; to enliven; to animate.