orthoortho-mili ortho-meser (Dimasa) Contributed by: Kulendra Daulagupu on 2012-04-22 1. (Abstract Noun) a word which means the opposite of another word. English: antonym, Assamese: বিপৰীত শব্দ, বিপৰীতাৰ্থক শব্দ, Dimasa: ortho-meser