cavelike

/ˈkeɪvˌlaɪk/
adjective
  1. Resembling or characteristic of a cave, especially in being dark, enclosed, or hollow.
    • The room was cavelike, cool and damp even in summer.
    • The basement had a cavelike feel, with stone walls and dim lighting.
    • They explored a cavelike opening in the cliffside.
Synonyms
What does "cavelike" mean? | whatsthatwordmean | whatsthatwordmean