OLDEN Meaning of OLDEN in English adjective 1.Synonyms: ancient 1, aged, age-old, antediluvian, antique, hoary, Noachian, old, timeworn, venerable 2.Synonyms: aged 1, ancient, elderly, old Merriam Webster. Collegiate thesaurus English vocabulary. Английский энциклопедический словарь тезаурус. 2003