Source : Webster's Revised Unabridged Dictionary (1913)

Ill-timed \Ill"-timed`\, a.
   Done, attempted, or said, at an unsuitable or unpropitious
   time.

Source : WordNet®

ill-timed
     adj : badly timed; "an ill-timed intervention"; "you think my
           intrusion unseasonable"; "an untimely remark"; "it was
           the wrong moment for a joke" [syn: {ill-timed(a)}, {ill
           timed(p)}, {unseasonable}, {untimely}, {wrong}]