Not deliberate or intentional; unplanned: an unintended slight. (adjective)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "unintended" in a sentence
"“Do you understand the term unintended consequences?”"
"As the sizable percentage of women who say they "didn't mind" the prospect of getting pregnant demonstrates, there's nuance hiding within the term "unintended pregnancy.""
"The term unintended pregnancy sums it up- neither the man or woman was planning for a pregnancy."