Online Google Dictionary

unheard 中文解釋 wordnet sense Collocation Usage Collins Definition
Adjective
/ˌənˈhərd/,
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Not heard or listened to,
  1. Not heard or listened to
    • - my protests went unheard
  2. Not previously known of or done
    • - sales tax was unheard of in Kansas up until 1937
    • - wines from unheard-of villages

  1. not necessarily inaudible but not heard