English edit

Etymology edit

From un- +‎ understandable.

Adjective edit

ununderstandable (comparative more ununderstandable, superlative most ununderstandable)

  1. Not understandable; that cannot be understood.
    Synonyms: incomprehensible, nonunderstandable; see also Thesaurus:incomprehensible
    • 1907, Barbara Baynton, edited by Sally Krimmer and Alan Lawson, Human Toll (Portable Australian Authors: Barbara Baynton), St Lucia: University of Queensland Press, published 1980, page 139:
      Cameron was for closing the discussion as useless and ununderstandable.
    • 1983, Walter Garrison Runciman, A treatise on social theory:
      But to report an item or sequence of behaviour as radically ununderstandable is to say that it is so inaccessible to any possible explanation []