Antonyms of adj lightproof

1 sense of lightproof

Sense 1
lightproof, light-tight -- (not penetrable by light; "lightproof containers")

INDIRECT (VIA opaque) -> clear -- (allowing light to pass through; "clear water"; "clear plastic bags"; "clear glass"; "the air is clear and clean")

Similarity of adj lightproof

1 sense of lightproof

Sense 1
lightproof, light-tight -- (not penetrable by light; "lightproof containers")
       => opaque (vs. clear) -- (not transmitting or reflecting light or radiant energy; impenetrable to sight; "opaque windows of the jail"; "opaque to X-rays")