imminent

As an adjective imminent

is about to happen, occur, or take place very soon, especially of something which won't last long.

As a noun impediment is

a hindrance; that which impedes or hinders progress.

As adjectives the difference between imminent and external

is that imminent is about to happen, occur, or take place very soon, especially of something which won't last long while external is outside of something; on the exterior.

As adjectives the difference between imminent and preeminent

is that imminent is about to happen, occur, or take place very soon, especially of something which won't last long while preeminent is pre-eminent.

As adjectives the difference between imminent and unavoidable

is that imminent is about to happen, occur, or take place very soon, especially of something which won't last long while unavoidable is impossible to avoid; bound to happen.

As a noun unavoidable is

something that cannot be avoided.

As an adjective imminent

is about to happen, occur, or take place very soon, especially of something which won't last long.

As a noun heresy is

(religion) a doctrine held by a member of a religion at variance with established religious beliefs, especially dissension from roman catholic dogma.

As an adjective imminent

is about to happen, occur, or take place very soon, especially of something which won't last long.

As a verb careen is

(nautical) to heave a ship down on one side so as to expose the other, in order to clean it of barnacles and weed, or to repair it below the water line.

As adjectives the difference between instantaneous and imminent

is that instantaneous is occurring, arising, or functioning without any delay; happening within an imperceptibly brief period of time while imminent is about to happen, occur, or take place very soon, especially of something which won't last long.

As adjectives the difference between emergent and imminent

is that emergent is arising unexpectedly, especially if also calling for immediate reaction; constituting an emergency while imminent is about to happen, occur, or take place very soon, especially of something which won't last long.

As a noun emergent

is a plant whose root system grows underwater, but whose shoot, leaves and flowers grow up and above the water.

As an adjective imminent

is about to happen, occur, or take place very soon, especially of something which won't last long.

As a verb escalate is

to increase (something) in extent or intensity; to intensify or step up.

As an adjective imminent

is about to happen, occur, or take place very soon, especially of something which won't last long.

As a verb escalating is

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