sightless vs unseeing

sightless and unseeing both are adjectives.

Word	Noun	Adjective	Verb	Adverb
sightless	No	Yes	No	No
unseeing	No	Yes	No	No

As adjectives, sightless and unseeing are synonyms defined as:

Other synonyms of sightless include eyeless.

sightless (adjective)	unseeing (adjective)
lacking sight	lacking sight
	not consciously observing