unintended consequences

Side effects, essentially

Unintended consequences are outcomes that weren't anticipated or planned for—side effects of an action or policy that nobody saw coming.

The phrase usually implies negative results: The law had unintended consequences that hurt the people it was meant to help.

Sometimes shortened to unintended: What are the unintendeds here?

Opposites
intentionality

unintended consequencesby design

Done with intent

on purpose

goal alignment

unintended consequencesmission accomplished

Task finished, goal met

success metrics

predictability

unintended consequencesknown quantities

Established, measurable factors

Family

intend, intent, intention, intended, consequence, consequences, intentional, unintended, unintentional

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Used worldwide · Timeless · Abstract · Negative · Everyday, not technical · Rated G