Windless is a synonym of zephyrless.
As adjectives the difference between windless and zephyrless
is that windless is devoid of wind; calm while zephyrless is without a zephyr.
windless
English
See also
* breathless
Anagrams
* swindles
* wildness
zephyrless
English
Adjective
(-)
Without a zephyr.
Synonyms
* breezeless
* still
* windless