unfavourable vs inexpedient

unfavourable and inexpedient both are adjectives.

Word	Noun	Adjective	Verb	Adverb
unfavourable	No	Yes	No	No
inexpedient	No	Yes	No	No

unfavourable (adjective)	inexpedient (adjective)
(of winds or weather) tending to hinder or oppose	not suitable or advisable
not encouraging or approving or pleasing	not appropriate to the purpose
involving or creating circumstances detrimental to success or effectiveness