English Alternative forms sinility Etymology From senile + -ity. Pronunciation IPA(key): /səˈnɪlɪti/ Audio (Southern England):(file) Rhymes: -ɪlɪti Noun senility (countable and uncountable, plural senilities) (chiefly uncountable) The bodily and mental deterioration associated with old age: Synonym of senescence. Antonyms: juvenescence, juvenility Near-synonym: second childhood (chiefly uncountable) The losing of memory and reason due to senescence. Antonym: juvenility He was entering his years of senility and not liking it a bit. (countable, archaic) An elderly, senile person. Antonym: juvenile 1934 May, Hearst's International combined with Cosmopolitan, page 117:There was no need for George Playford to talk as if they were doddering senilities. Related terms senile (adj) Translations the losing of memory and reason Breton: kabac'hded (br) Bulgarian: сенилност (bg) f (senilnost), изкуфялост (bg) f (izkufjalost) Catalan: senilitat f Chinese: 痴呆 (zh) (chidai) Dutch: seniliteit (nl) f Finnish: vanhuudenhöperyys (fi), seniiliys (fi) French: sénilité (fr) German: Senilität (de) f Greek: γεροντική άνοια (el) f (gerontikí ánoia) Japanese: 耄碌 (ja) (mōroku) Macedonian: изветреаност f (izvetreanost), излапеност f (izlapenost), сенилност f (senilnost) Plautdietsch: Ellaschwakheit f Polish: starczość (pl) f Portuguese: senilidade (pt) f Romanian: senilitate (ro) f Russian: ста́рость (ru) f (stárostʹ), дря́хлость (ru) f (drjáxlostʹ) Spanish: senilidad (es) f Swedish: senilitet (sv) c Tausug: kalīanan an elderly, senile person Bulgarian: старец (bg) m (starec) Wikiwand - on Seamless Wikipedia browsing. On steroids.