vacuous

[ vak-yoo-uhs ]
/ ˈvæk yu əs /
See synonyms for: vacuous / vacuousness on Thesaurus.com

adjective

without contents; empty: the vacuous air.
lacking in ideas or intelligence: a vacuous mind.
expressing or characterized by a lack of ideas or intelligence; inane; stupid: a vacuous book.
purposeless; idle: a vacuous way of life.

QUIZZES

THIS PSAT VOCABULARY QUIZ IS PERFECT PRACTICE FOR THE REAL TEST

In our third teacher-created PSAT practice test there are new and unique vocabulary terms you may have never heard of! Can you guess what they mean?
Question 1 of 10
seclusion

Origin of vacuous

1645–55; from Latin vacuus “empty”; see -ous

OTHER WORDS FROM vacuous

WORDS THAT MAY BE CONFUSED WITH vacuous

vacant, vacuous
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

Example sentences from the Web for vacuous

British Dictionary definitions for vacuous

vacuous
/ (ˈvækjʊəs) /

adjective

containing nothing; empty
bereft of ideas or intelligence; mindless
characterized by or resulting from vacancy of minda vacuous gaze
indulging in no useful mental or physical activity; idle
logic maths (of an operator or expression) having no import; idle: in (x) (John is tall) the quantifier (x) is vacuous

Derived forms of vacuous

vacuously, adverbvacuousness, noun

Word Origin for vacuous

C17: from Latin vacuus empty, from vacāre to be empty
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012