Wily vs Cautelous - What's the difference?

As adjectives the difference between wily and cautelous

is that wily is sly, cunning, full of tricks while cautelous is skillful in trickery or deception; cunning, wily.

(en-adj)

sly, cunning, full of tricks

Horatio's new girlfriend is a wily coquette and poor Horatio is too smitten to see it.

* See also

(en adjective)

(obsolete) Skillful in trickery or deception; cunning, wily.

* 1644 , (John Milton), Aeropagitica :

I am not able to unfold, how this cautelous enterprise of licencing can be exempted from the number of vain and impossible attempts.

(obsolete) Cautious, careful.

* 1624 , , Generall Historie , in Kupperman 1988, p. 140:

Some are of disposition fearefull, some bold, most cautelous , all Savage.