OPSIMATH Meaning of OPSIMATH in English [ 'ɒpsɪmaθ ]■ noun a person who begins to learn or study only late in life.OriginC19: from Gk ~ēs , from opse 'late' + the stem math- 'learn'. Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004