without apparent forethought or prompting or planning;
"an unplanned economy"; "accepts an unplanned order"; "an unplanned pregnancy"; "unplanned remarks" Antonym(s):planned
not done with purpose or intent; "an unintended slight"; "an unintentional pun"; "the offense was unintentional"; "an unwitting mistake may be overlooked" Synonym(s):unintentional, unplanned, unwitting