Sanity Meaning
/ˈsæ.nə.ti/Definition, CEFR level B1, pronunciation, examples, and quiz.
Listen pronunciation
Definition
nounThe condition of being sane.
nounReasonable and rational behaviour.
Sentence Examples
The thin line between sanity and madness has gotten finer.
This book presents to you 10 original ways to retain your sanity.
Synonyms & Antonyms
Synonyms:
None
Antonyms:
CEFR Practice Quiz
After days without sleep, the soldier began to doubt his own ____.
CEFR Practice Quiz (Alternate)
She questioned her own ____ after hearing the same strange noise three nights in a row.
Word Origin & History
From Middle English sanite, sanyte, sanytee, from Middle French sanité, from Latin sānitās, from sānus (“healthy”) + -itās (“-ity”). By surface analysis, sane + -ity.
Literary Quotations & Historical Citations
"The template is [Richard] Nixon’s “madman theory” of diplomatic engagement – shorthand for prompting your adversaries to doubt your sanity and mental instability to the point where they are intimidated into otherwise unlikely concessions."
— 2026 April 8, Robert Tait, “Trump may be using Nixon’s ‘madman theory’ – and similar infamy may await”, in The Guardian, →ISSN, archived from the original on 08 Apr 2026:
Explore More B1 Vocabulary Words
CEFR Practice Quiz
After days without sleep, the soldier began to doubt his own ____.
CEFR Practice Quiz (Alternate)
She questioned her own ____ after hearing the same strange noise three nights in a row.