As adjectives the difference between sightable and lightable
is that sightable is capable of being sighted; visible from a vantage point while lightable is capable of being lit (illuminated).
sightable
English
Adjective
(-)
Capable of being sighted; visible from a vantage point. lightable
English
Adjective
(-)
Capable of being lit (illuminated).
Capable of being lit (set on fire).
Related terms
* relightable
* unlightable