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Definition of flightless
flightless
/ˈflaɪt.ləs/
flight · less
flightless Lexical Profile
CEFR
B2
Grade
6
Tier
2
Usage
Top 10k
Syllables
2
flightless Game Scores & Validity
Scrabble US
Scrabble UK
WWF
Wordle Guess
• adjective
1
Naturally incapable of flying, especially in reference to certain birds or insects whose wings are vestigial, absent, or adapted for swimming.
Example
"The ostrich and the penguin are among the best-known flightless birds in the world."
Synonyms
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Cite this Entry
Wordmom. (2026). Definition of Flightless. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/flightless