triagonal

Etymology
Irregular formation of, after etc.

Adjective

 * 1) Triangular.
 * 2) * 2005, LazyTown (TV series), "Dear Diary" (season 1, episode 16): "The Mine Song"
 * This mailbox is mine / And this triagonal sign. / That blue balloon, the month of June. / They're mine, mine, mine, mine, mine.
 * This mailbox is mine / And this triagonal sign. / That blue balloon, the month of June. / They're mine, mine, mine, mine, mine.