Definition of monogamistic in English:
monogamistic
adjective mɒˌnɒɡəˈmɪstɪkməˌnɒɡəˈmɪstɪk
Of or relating to monogamists or monogamy; favouring monogamy.
Origin
Late 19th century; earliest use found in Overland Monthly. From monogamist + -ic; compare -istic.