adjective

1. At an angle from the vertical or horizontal.

   “The child listened, her head atilt.”

Synonyms: tilted

adverb

1. At an angle from the vertical or horizontal; at the point of falling over.

   “He wore his hat rakishly atilt.”

2. Tilting or as if tilting (charging with a lance, like a knight on horseback in a joust).

   “to run / ride atilt at someone or something”

preposition

1. Diagonally over or across.

Synonyms: aslant