vacuous
/ˈvækju.əs/ adjective
- adjective Empty; void; lacking meaningful content. “vacuous expression”
- adjective Showing a lack of thought or intelligence; vacant.
Synonyms
vacuitous empty vacant empty as a pauper's purse empty as the tomb on Easter clean leer toom unfilled vacuumlike void empty-headed brainless addlebrained addlepated airheaded bee-brained beef-witted soft beefheaded asinine fatuous inane mindless hollow blank
Etymology
Learned borrowing from Latin vacuus (“empty, vacant”) + -ous.
Webster’s 1913
Etymology [L. vacuus. See Vacant.]
Sources: Wiktionary · WordNet 3.0 · Webster’s 1913 — from the Wiktionary entry “vacuous”, CC BY-SA 4.0. Details