voiceless

Từ điển Oxford Advanced Learner 8th

voice·less [voiceless] BrE [ˈvɔɪsləs] NAmE [ˈvɔɪsləs] adjective (phonetics)
(of consonants)produced without moving your ↑vocal cords. For example, the consonants /[p] /, /[t] / and /[k] / are voiceless.
Syn: ↑unvoiced, Opp: ↑voiced

• Từ đồng nghĩa / Synonyms:
  aphonic, breathed, disenfranchised, disfranchised, voteless, unvoiced, surd, hard
• Từ trái nghĩa / Antonyms:
  enfranchised, voiced, sonant, soft