unsmart

/ʌnˈsmɑrt/
adjective
  1. Not intelligent or clever; showing a lack of good judgment.
    • He felt unsmart compared to his classmates in math.
    • Making that joke was an unsmart move during the interview.
    • It was unsmart to leave your phone on the bus.
What does "unsmart" mean? | whatsthatwordmean | whatsthatwordmean