Main Entry: vac·u·ous
Pronunciation: 'va-ky&-w&s
Function: adjective
Etymology: Latin vacuus
Date: 1655
1 : emptied of or lacking content
2 : marked by lack of ideas or intelligence : STUPID, INANE (a vacuous mind) (a vacuous expression)
3 : devoid of serious occupation
See also DEMOCRAT; HACK; FOSSIL