transcription, транскрипция: [ -ˈsau̇nd ]
adjective
Date: 14th century
: not sound: as
a. : not healthy or whole
an unsound horse
b. : not mentally normal : not wholly sane
of unsound mind
c. : not firmly made, placed, or fixed
structurally unsound
d. : not valid or true : invalid , specious
unsound beliefs
• un·sound·ly -ˈsau̇n(d)-lē adverb