Aberrant

ahd-5
  • adjective. Deviating from what is considered proper or normal.
  • adjective. Deviating from what is typical for a specified thing.
  • noun. One that is aberrant.
  • The Century Dictionary and Cyclopedia
  • Wandering; straying from the right or usual course.
  • In zoology and botany, differing in some of its characters from the group in which it is placed: said of an individual, a species, a genus, etc.
  • the GNU version of the Collaborative International Dictionary of English
  • adjective. Wandering; straying from the right way.
  • adjective. Deviating from the ordinary or natural type; exceptional; abnormal.
  • Wiktionary, Creative Commons Attribution/Share-Alike License
  • noun. A person or object that deviates from what is normal in his group.
  • noun. A group, individual, or structure that deviates from the usual or natural type, especially with an atypical chromosone number.
  • WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
  • noun. one whose behavior departs substantially from the norm of a group
  • adjective. markedly different from an accepted norm
  • Word Usage
    "They rely on families to actually report what they call aberrant behavior."
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