sudden

Sudden is a related term of accelerated.

As adjectives the difference between sudden and accelerated

is that sudden is happening quickly and with little or no warning while accelerated is moving or progressing faster than is usual.

As an adverb sudden

is (poetic) suddenly.

As a noun sudden

is (obsolete) an unexpected occurrence; a surprise.

As a verb accelerated is

(accelerate).

In obsolete|lang=en terms the difference between sudden and onset

is that sudden is (obsolete) an unexpected occurrence; a surprise while onset is (obsolete) to set about; to begin.

As nouns the difference between sudden and onset

is that sudden is (obsolete) an unexpected occurrence; a surprise while onset is a rushing or setting upon; an attack; an assault; a storming; especially, the assault of an army.

As an adjective sudden

is happening quickly and with little or no warning.

As an adverb sudden

is (poetic) suddenly.

As a verb onset is

(obsolete) to assault; to set upon.

As adjectives the difference between sudden and paroxysmal

is that sudden is happening quickly and with little or no warning while paroxysmal is of, pertaining to, causing or accompanied by paroxysms.

As an adverb sudden

is (poetic) suddenly.

As a noun sudden

is (obsolete) an unexpected occurrence; a surprise.

Sudden is a related term of whirlwind.

As adjectives the difference between sudden and whirlwind

is that sudden is happening quickly and with little or no warning while whirlwind is rapid and minimal: a whirlwind tour'', ''a whirlwind guide .

As nouns the difference between sudden and whirlwind

is that sudden is (obsolete) an unexpected occurrence; a surprise while whirlwind is a violent windstorm of limited extent, as the tornado, characterized by an inward spiral motion of the air with an upward current in the center; a vortex of air it usually has a rapid progressive motion.

As an adverb sudden

is (poetic) suddenly.

Sudden is a related term of fleet.

As an adjective sudden

is happening quickly and with little or no warning.

As an adverb sudden

is (poetic) suddenly.

As a noun sudden

is (obsolete) an unexpected occurrence; a surprise.

As a proper noun fleet is

the stream that ran where fleet street now runs.

As adjectives the difference between progressive and sudden

is that progressive is favouring or promoting progress; advanced while sudden is happening quickly and with little or no warning.

As nouns the difference between progressive and sudden

is that progressive is a person who actively favors or strives for progress towards improved conditions, as in society or government while sudden is an unexpected occurrence; a surprise.

As an adverb sudden is

suddenly.

Brief is a related term of sudden.

As nouns the difference between brief and sudden

is that brief is letter (written message) while sudden is (obsolete) an unexpected occurrence; a surprise.

As an adjective sudden is

happening quickly and with little or no warning.

As an adverb sudden is

(poetic) suddenly.

Sudden is a related term of expeditious.

As adjectives the difference between sudden and expeditious

is that sudden is happening quickly and with little or no warning while expeditious is fast, prompt, speedy.

As an adverb sudden

is (poetic) suddenly.

As a noun sudden

is (obsolete) an unexpected occurrence; a surprise.

Sudden is a related term of headlong.

As adjectives the difference between sudden and headlong

is that sudden is happening quickly and with little or no warning while headlong is precipitous.

As adverbs the difference between sudden and headlong

is that sudden is (poetic) suddenly while headlong is with the head first or down.

As a noun sudden

is (obsolete) an unexpected occurrence; a surprise.

As a verb headlong is

to precipitate.