DISILLUSION Meaning of DISILLUSION in English [ ˌdɪsɪ'l(j)u:ʒ(ə)n ]■ noun the disappointing loss of a belief or an ideal. ■ verb cause to experience ~.Derivatives~ed adjective~ment noun Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004