Aphotic and Caliginous

Aphotic adjective - Lacking light; especially not reached by sunlight.

Caliginous and aphotic are semantically related. in lack of light topic. In some cases you can use "Caliginous" instead an adjective "Aphotic".

Caliginous adjective - Being without light or without much light.

Aphotic and caliginous are semantically related. Sometimes you can use "Aphotic" instead an adjective "Caliginous".