leaning vs atilt

leaning is a noun but atilt is not a noun.

Word	Noun	Adjective	Verb	Adverb
leaning	Yes	Yes	No	No
atilt	No	Yes	No	No

As adjectives, leaning and atilt are synonyms defined as:

leaning and atilt: departing or being caused to depart from the true vertical or horizontal

Other synonyms of leaning include canted, tilted, tipped.

leaning (noun)	atilt (noun)
the act of deviating from a vertical position
the property possessed by a line or surface that departs from the vertical
a natural inclination
an inclination to do something

leaning (adjective)	atilt (adjective)
departing or being caused to depart from the true vertical or horizontal	departing or being caused to depart from the true vertical or horizontal