I.
a.
1.
Vacant, empty, void, cavernous.
2.
Insincere, treacherous, false, faithless, hypocritical, pharisaical, deceitful, false-hearted, hollow-hearted.
3.
Deep, low, rumbling.
II.
n.
1.
Depression, low spot, low place.
2.
Cavity, concavity, depression, excavation, pit, hole, cave, cavern, dent, dint, dimple.
3.
Groove, channel, canal.
III.
v. a.
Excavate, scoop, dig out.
IV.
ad.
(Colloq.) Wholly, completely, utterly, out and out, entirely, thoroughly.