unintentional

adj

1. Not intended or deliberate; inadvertent; unwitting.

   “Review of systems was positive for unintentional weight gain of 13.5 kilograms in the last eight months, excessive fatigue, fever, difficulty focusing, one episode of painful oral ulcer on the roof of her mouth, change in the hair texture with nonscarring alopecia, shortness of breath with exertion, and constipation.”