The difference between Everlasting and Immortal

When used as nouns, everlasting means an everlasting flower, whereas immortal means one who is not susceptible to death.

When used as adjectives, everlasting means lasting or enduring forever, whereas immortal means not susceptible to death.

Everlasting is also adverb with the meaning: extremely.

check bellow for the other definitions of Everlasting and Immortal

Everlasting as an adjective:

Lasting or enduring forever; existing or continuing without end

Examples:

"synonyms: immortaeternal"
Everlasting as an adjective:

Continuing indefinitely, or during a long period; perpetual; sometimes used, colloquially, as a strong intensive.

Examples:

"this everlasting nonsense"
Everlasting as an adjective (philosophy):

Existing with infinite temporal duration (as opposed to existence outside of time).

Everlasting as a noun:

An everlasting flower.
Everlasting as a noun (historical):

A durable cloth fabric for shoes, etc.

Immortal as an adjective:

Not susceptible to death; living forever; never dying.
Immortal as an adjective:

Never to be forgotten; that merits being always remembered.

Examples:

"his immortal words"
Immortal as an adjective:

Connected with or relating to immortality.
Immortal as an adjective (obsolete):

Exceedingly great; excessive; grievous.

Examples:

"rfquotek Hayward"

Immortal as a noun:

One who is not susceptible to death.
Immortal as a noun:

A member of an elite regiment of the Persian army.
Immortal as a noun:

A member of the Académie française.
Immortal as a noun (Internet):

An administrator of a multi-user dungeon; a wizard.