supersonic

Từ điển WordNet v3.1 - WordNet Dictionary

adjective

1. (of speed) greater than the speed of sound in a given medium (especially air) (Freq. 2)
- a supersonic bomber flies so fast that it must release its bombs while the target is still over the horizon
• Ant:
sonic, subsonic
2. having frequencies above those of audible sound
• Syn:
ultrasonic
• Similar to:
inaudible, unhearable
• Derivationally related forms:
ultrasound (for: ultrasonic)

• Từ trái nghĩa / Antonyms:
  sonic, transonic, subsonic