atypical (adj.)youdaoicibaDictYouDict
1847, from a- (2) "not" + typical. Related: Atypically.
prototypical (adj.)youdaoicibaDictYouDict
1640s, from prototype + -ical.
stereotypical (adj.)youdaoicibaDictYouDict
1949, in the figurative sense, from stereotype (n.) + -ical. Stereotypic is from 1801 in the literal sense.
typical (adj.)youdaoicibaDictYouDict
c. 1600, "symbolic, emblematic," from Medieval Latin typicalis "symbolic," from Late Latin typicus "of or pertaining to a type," from Greek typikos, from typos "impression" (see type (n.)). Sense of "characteristic" is first recorded 1850. Related: Typically.