stealthy

/ˈstɛlθi/
adjective
  1. Moving or acting in a quiet, secret, or careful way to avoid being noticed.
    • The ninja's stealthy movements allowed him to pass unseen.
    • He made a stealthy exit from the party before anyone saw him.
    • The stealthy fox crept toward the chicken coop.
  2. Designed or intended to avoid detection, especially by radar or other sensors.
    • Stealthy aircraft are painted with special materials that absorb radar signals.
    • The military developed a stealthy drone for surveillance missions.
    • The new warship has a stealthy design that makes it hard to track.
Antonyms
What does "stealthy" mean? | whatsthatwordmean | whatsthatwordmean