airworthiest
/ˈɛrˌwɜrðiɪst/
adjective
- Most fit or safe for flying; the superlative form of airworthy.
- Among all the used planes for sale, this one is the airworthiest.
- After years of upgrades, this vintage plane is now the airworthiest in the fleet.
- The inspectors declared it the airworthiest aircraft they had ever tested.
Antonyms