foolish

/ˈfulɪʃ/
adjective
  1. Lacking good sense or judgment; unwise.
    • Making a decision without any research is a foolish mistake.
    • It was foolish to spend all your money on lottery tickets.
    • She felt foolish after realizing she had locked her keys in the car.
  2. Causing someone to feel embarrassed or silly.
    • I felt foolish when I tripped on the stairs in front of the whole class.
    • Wearing a costume to the wrong party made her look foolish.
    • He made a foolish face in the photo and everyone laughed.
Antonyms