inconspicuous (adj.)youdaoicibaDictYouDict[inconspicuous 词源字典]
1620s, "invisible," from Late Latin inconspicuus, from in- "not, opposite of, without" (see in- (1)) + Latin conspicuus (see conspicuous). Weakened sense of "not readily seen or noticed" first recorded 1828. Related: Inconspicuously; inconspicuousness.[inconspicuous etymology, inconspicuous origin, 英语词源]