As adjectives the difference between maskless and mastless
is that maskless is without a mask while mastless is without a mast.
maskless
English
Adjective
(-)
Without a mask.
mastless
English
Adjective
(
-)
Without a mast.
- a mastless ship
Bearing no mast (fruit of a tree).
- a mastless oak or beech
- (Dryden)