Fast

Quick meaning: Fast is an adjective meaning Firm against attack; fortified by nature or art; impregnable; strong.

Meaning

Firm against attack; fortified by nature or art; impregnable; strong.

More Meanings

1. (of people) Steadfast, with unwavering feeling. (Now mostly in set phrases like fast friend(s).)
2. Moving with great speed, or capable of doing so; swift, rapid; light.
3. Of a place, characterised by business, hustle and bustle, etc.
4. Causing unusual rapidity of play or action.
5. (computing, of a piece of hardware) Able to transfer data in a short period of time.
6. Deep or sound (of sleep); fast asleep (of people).
7. (dated) Firmly or securely fixed in place; stable.

Example Sentences

a fast track

a fast billiard table

I am going to buy a fast car.

a fast racket, or tennis court

Word Forms

• faster
• fastest
• fasts
• fasting
• fasted

Synonyms for fast

Depending on context, synonyms include quick, rapid, speedy, swift, easy, slutty.

Antonyms for fast

Common opposites include slow, loose, penetrable, weak, light, behind.

Related Words

Related dictionary entries include tight, instantaneous, immediate, instant, true, profligate.

Commonly Confused & Compared Words

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