fast

As a noun promptness

is the habit or characteristic of doing things without delay.

As a verb fast is

.

Fast is a related term of lively.

As a verb fast

is .

As a proper noun lively is

.

Exhilarating is a related term of fast.

As verbs the difference between exhilarating and fast

is that exhilarating is while fast is .

As an adjective exhilarating

is refreshingly thrilling.

Fast is a related term of frisky.

As a verb fast

is .

As an adjective frisky is

playful; energetic; lively; enthusiastic.

Fast is a related term of nimble.

As a verb fast

is .

As an adjective nimble is

quick and light in movement or action.

Eternal is a related term of fast.

As an adjective eternal

is lasting forever; unending.

As a verb fast is

.

Fast is a related term of accelerated.

As verbs the difference between fast and accelerated

is that fast is while accelerated is (accelerate).

As an adjective accelerated is

moving or progressing faster than is usual.

As adjectives the difference between fast and glowing

is that fast is firmly or securely fixed in place; stable while glowing is that glows or glow.

As nouns the difference between fast and glowing

is that fast is a train that calls at only some stations it passes between its origin and destination, typically just the principal stations while glowing is the action of the verb glow.

As verbs the difference between fast and glowing

is that fast is to abstain from food, or eat very little, especially for religious or medical reasons while glowing is present participle of lang=en.

As an adverb fast

is in a firm or secure manner, securely; in such a way as not to be moved .

As an interjection fast

is short for "stand fast", a warning not to pass between the arrow and the target.

Zesty is a related term of fast.

As an adjective zesty

is having a piquant or pungent taste; spicy.

As a verb fast is

.

As adjectives the difference between fast and whirlwind

is that fast is firmly or securely fixed in place; stable while whirlwind is rapid and minimal: a whirlwind tour, a whirlwind guide.

As nouns the difference between fast and whirlwind

is that fast is a train that calls at only some stations it passes between its origin and destination, typically just the principal stations 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 fast

is in a firm or secure manner, securely; in such a way as not to be moved .

As an interjection fast

is short for "stand fast", a warning not to pass between the arrow and the target.

As a verb fast

is to abstain from food, or eat very little, especially for religious or medical reasons.