n. 25B6; adjective DODDERING, doddery, decrepit, senescent, declining, infirm, feeble; aged, long in the tooth, in one's dotage; mentally confused, having Alzheimer's (disease), having senile dementia; informal past it, gaga.
SENILE
Meaning of SENILE in English
Concise Oxford thesaurus English vocabulary. Краткий оксфордский словарь английского языка тезаурус. 2012