forever

As adverbs the difference between forever and today

is that forever is (duration) for all time, for all eternity; for an infinite amount of time while today is on the current day or date.

As nouns the difference between forever and today

is that forever is an extremely long time while today is a current day or date.

As adverbs the difference between forever and yesterday

is that forever is (duration) for all time, for all eternity; for an infinite amount of time while yesterday is on the day before today.

As nouns the difference between forever and yesterday

is that forever is an extremely long time while yesterday is the day immediately before today; one day ago.

As nouns the difference between forever and immutable

is that forever is an extremely long time while immutable is something that cannot be changed.

As an adverb forever

is (duration) for all time, for all eternity; for an infinite amount of time.

As an adjective immutable is

unable to be changed without exception.

As an adjective lifelong

is extending for the entire duration of life.

As an adverb forever is

for all time, for all eternity; for an infinite amount of time.

As a noun forever is

an extremely long time.

Forever is a synonym of unceasingly.

As adverbs the difference between forever and unceasingly

is that forever is (duration) for all time, for all eternity; for an infinite amount of time while unceasingly is without ceasing (stopping), continuously.

As a noun forever

is an extremely long time.

Forever is a synonym of unchangeably.

As adverbs the difference between forever and unchangeably

is that forever is (duration) for all time, for all eternity; for an infinite amount of time while unchangeably is in a way that cannot be varied]], or [[change#verb|changed.

As a noun forever

is an extremely long time.

As nouns the difference between constant and forever

is that constant is that which is permanent or invariable while forever is an extremely long time.

As an adjective constant

is unchanged through time or space; permanent.

As an adverb forever is

for all time, for all eternity; for an infinite amount of time.

As nouns the difference between victory and forever

is that victory is an instance of having won a competition or battle while forever is an extremely long time.

As a verb victory

is (rare) to achieve a.

As an adverb forever is

(duration) for all time, for all eternity; for an infinite amount of time.

As an adjective persistent

is obstinately refusing to give up or let go.

As an adverb forever is

(duration) for all time, for all eternity; for an infinite amount of time.

As a noun forever is

an extremely long time.

Forever is a synonym of interminably.

As adverbs the difference between forever and interminably

is that forever is (duration) for all time, for all eternity; for an infinite amount of time while interminably is in an interminable manner.

As a noun forever

is an extremely long time.