Wiktionary
grottolike
a. Having the appearance of a grotto
Usage examples of "grottolike".
The drive circled around a two-level grottolike pool with its own miniature waterfall.
When the aircraft was less than two hundred yards from smashing into the mountain, the ice cliff miraculously parted, revealing a vast grottolike interior.
She looked forward to entering the grottolike clearing that had been a natural shrine long before the Christians, even before the Druids.
In the ship’s grottolike dockingbay, Commander Chine-kal and the priest, Moorsh, welcomed Randa Besadii Diori aboard.