Definition

The fastest or most quick in speed.

Example

She is the speediest runner in the school.

Comparatives & Superlatives

Conversation

Did you see the new car that just came out?

Yeah, it looks amazing and is supposed to be the speediest model yet!

I can't believe how fast it can go.

I know! I would love to take it for a spin.

Synonyms & Antonyms

Root Explanation

Speediest → It is formed from "speed" (from Old English *spēd*, meaning success or prosperity) and the superlative suffix "-iest" (meaning most). The word "speediest" means the most speedy or the fastest.

Memory Tip

Think of 'speed' as success or quickness, and remember that 'speediest' means the most quick.

Visually Confused Words