The difference between Ephemeral and Everlasting

When used as nouns, ephemeral means something which lasts for a short period of time, whereas everlasting means an everlasting flower.

When used as adjectives, ephemeral means lasting for a short period of time, whereas everlasting means lasting or enduring forever.

Everlasting is also adverb with the meaning: extremely.

check bellow for the other definitions of Ephemeral and Everlasting

Ephemeral as an adjective:

Lasting for a short period of time.
Ephemeral as an adjective (biology):

Existing for only one day, as with some flowers, insects, and diseases.
Ephemeral as an adjective (geology, of a body of water):

Usually dry, but filling with water for brief periods during and after precipitation.

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.