As adjectives the difference between inadvisable and unadvisable
is that inadvisable is unwise; not recommended; not prudent; not to be advised while unadvisable is inadvisable.
inadvisable
English
Adjective
(
en-adj) (or
unadvisable )
unwise; not recommended; not prudent; not to be advised
Related terms
* inadvisability
unadvisable
English
Adjective
(
en adjective)
Inadvisable.
*1948 , William Burroughs, letter, 5 Jun 1948:
*:Will go back there to get it in a week or so, but may find the harvest unadvisable for reasons of security.
(archaic) Unwilling to take advice.
(archaic) Imprudent.
Usage notes
* "Inadvisable" is used about 10 times more frequently than "unadvisable" at COCA (US usage) and 20 times more at BNC (UK written usage).