BLIND is validvalid

sightless [adj BLINDER, BLINDEST] : BLINDLY [adv], BLINDNESS [n] / to make sightless [v BLINDED, BLINDING, BLINDS] : BLINDINGLY [adv]

6,293 of 196,601 in NWL2023·also valid in CSW24

to make sightless [v -ED, -ING, -S] / sightless [adj BLINDER, BLINDEST, BLINDLY]