sightless
Concise Oxford English Dictionary © 2008 Oxford University Press:
sightless/ˈsʌɪtləs/
▶adjective
- 1 unable to see; blind.
- 2 literary invisible.
– derivatives
sightlessly adverb,
sightlessness noun.
sightlessly adverb,
sightlessness noun.
'sightless' also found in these Oxford entries:

