ill-judged vs improvident

ill-judged and improvident both are adjectives.

Word	Noun	Adjective	Verb	Adverb
ill-judged	No	Yes	No	No
improvident	No	Yes	No	No

As adjectives, ill-judged and improvident are synonyms defined as:

Other synonyms of ill-judged include ill-considered, shortsighted.

ill-judged (adjective)	improvident (adjective)
not given careful consideration	not provident; not providing for the future
	not given careful consideration