Part of speech:
Containing no matter; empty.
Lacking sense or substance:
Having empty spaces to be filled in
Not reasoning or reasoned; marked by a lack of reason or judgment; irrational
Free from flaw, blemish, or impurity:
Completely lacking; destitute or empty:
(Obs.) Simple; plain; innocent
Lacking the usual or appropriate covering or clothing; naked:
Having a cavity, gap, or space within:
Of, relating to, or resembling an ass.
Foolish or silly, especially in a smug or self-satisfied way:
Not using one's mind; showing little or no intelligence or intellect; senseless or thoughtless
Find another word for vacuous. In this page you can discover 23 synonyms, antonyms, idiomatic expressions, and related words for vacuous, like: void, full, emptied, inane, blank, unreasoning, dull, empty, clear, devoid and silly.