noun a small valley between mountains
Synonymsholler
noun a depression hollowed out of solid matter
Synonymshole
verb remove the interior of
adjective not solid; having a space or gap or cavity
Oppositessolid
adjective as if echoing in a hollow space
Similarreverberant
adjective lacking in substance or character
Similarinsubstantial
Source: WordNet 3.1, Princeton University
