not having any occupant; empty
said of an office or post: not filled
free from activity or work
vacant hours
stupid or foolish
a vacant mind
said of a look: lacking any expression
free from thought or care
when on my couch I lie in vacant or in pensive mood — Wordsworth
vacantly adv
vacantness noun
[Middle English via French from Latin vacant-, vacans, present part. of vacare to be empty, be free]