Definition

Not able to fly, often used to describe certain types of birds that do not have the ability to take off from the ground.

Example

Penguins are flightless birds that are excellent swimmers.

Conversation

Did you know that penguins are flightless birds?

Yeah, I found that out recently!

It’s interesting how they adapted to swimming instead of flying.

Right? They really thrive in their environment.

Synonyms & Antonyms

Root Explanation

Flightless → It is formed from "flight" (from Old English *flyht*, meaning the act of flying) and "-less" (meaning without). The word "flightless" describes something that is without the ability to fly.

Memory Tip

Think of the word 'flight' which refers to the act of flying, and remember that 'flightless' means without the ability to fly.

Visually Confused Words