Something chthonic dwells beneath the earth. This word usually refers to mythological creatures, but you could also refer to your creepy basement as chthonic.
Pertaining to the earth; earthy;
Adjective S.
of the underworld; "nether regions"
a.
Pertaining to the earth; earthy; as, chthonic religions.
Chthonic
[The] chthonic character of the wife of Zeus.
Pertaining to the earth; earthy;
Usage Examples
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