tend-, tendo-, ten-, teno-, tenot-, tenonto-, tens-, tent-, -tend, -tension, -tent, -tense, -tensive, -tentious

(Greek > Latin: to move in a certain direction; to stretch, to hold out; tension; as well as tendon, sinew)

unintended (adjective) (not comparable)
Not planned or meant to be a goal or objective: "The program set up by the government could have unintended results from the public."

"The unintended or unwanted consequences of the politician's behaviors and lies may find him completely kicked out of his office!"

unintentional (adjective), more unintentional, most unintentional
Not meant to happen or not done on purpose: "Bumping into the other student in the hallway, when she was hurrying to get to her class before the tardy bell rang, was unintentional and embarrassing for Florence."

Some related "tension" words are available at this tono- unit.