sneak

/sniːk/
noun
  1. A person who acts in a secret or dishonest way, especially one who tells on others.
    • I don't trust him; he's a sneak who always looks for an advantage.
    • The other kids called him a sneak for reporting the broken window.
    • Don't be such a sneak — you didn't have to tell the teacher.
  2. A quick, secret look or action.
    • He had a quick sneak through the papers on her desk.
    • She took a sneak at the presents hidden in the closet.
    • We got a sneak of the new movie before it was released.
adjective
  1. Done or happening in a secret or unexpected way.
    • We went on a sneak attack, surprising the enemy at dawn.
    • He took a sneak peek at the test results before the official announcement.
    • The company gave us a sneak preview of the new product.
verb
  1. To move quietly and secretly to avoid being noticed.
    • She sneaked into the kitchen to grab a cookie before dinner.
    • The cat tried to sneak up on the bird in the garden.
    • He sneaked out of the meeting when no one was looking.
  2. To take or do something in a secret or dishonest way.
    • The student tried to sneak a look at the answer key.
    • I managed to sneak a nap during my lunch break.
    • They sneaked extra supplies into the camp without permission.
  3. To move or cause to move in a gradual, unnoticed way (often used with 'in' or 'up').
    • Doubt began to sneak into her mind as the hours passed.
    • The deadline sneaked up on us faster than we expected.
    • A feeling of excitement sneaked over him as he opened the letter.
Antonyms