Meaning : Without apparent forethought or prompting or planning.
Example :
An unplanned economy.
Accepts an unplanned order.
An unplanned pregnancy.
Unplanned remarks.
Meaning : Not done with purpose or intent.
Example :
An unintended slight.
An unintentional pun.
The offense was unintentional.
An unwitting mistake may be overlooked.
Synonyms : unintentional, unwitting