objective (adj.)youdaoicibaDictYouDict[objective 词源字典]
1610s, originally in the philosophical sense of "considered in relation to its object" (opposite of subjective), formed on pattern of Medieval Latin objectivus, from objectum "object" (see object (n.)) + -ive. Meaning "impersonal, unbiased" is first found 1855, influenced by German objektiv. Related: Objectively.[objective etymology, objective origin, 英语词源]