The adjective untoward describes something offensive or inappropriate, like the rumors of untoward behavior that can shatter a Hollywood icon's reputation.

Untoward also describes things that are not good for you, such as untoward advice from someone your parents always said was a bad influence. Think about what you do when you move toward something: you get closer to it. Suppose you're moving toward a goal. You are, as they say, "on the right path." But when you add the prefix un- you reverse that, and you're no longer on the path to that goal — you're untoward.

Definitions of untoward

adj not in keeping with accepted standards of what is right or proper in polite society

“moved to curb their untoward ribaldry”
indecent, indecorous, unbecoming, uncomely, unseemly
not suitable or right or appropriate

adj contrary to your interests or welfare

“made a place for themselves under the most untoward conditions”
adverse, inauspicious
unfavorable, unfavourable
not encouraging or approving or pleasing