Indecorous \In`de*co"rous\ (?; 277), a. [L. indecorous. See
   {In-} not, and {Decorous}.]
   Not decorous; violating good manners; contrary to good
   breeding or etiquette; unbecoming; improper; out of place;
   as, indecorous conduct.
   
[1913 Webster]


         It was useless and indecorous to attempt anything more
         by mere struggle.                        --Burke.

   Syn: Unbecoming; unseemly; unbefitting; rude; coarse;
        impolite; uncivil; ill-bred.
        
[1913 Webster]