As adjectives the difference between untrustworthy and unsound
is that untrustworthy is not deserving of trust; unreliable while unsound is not sound; not whole; not solid; defective; infirm; diseased.
untrustworthy
English
Adjective
(
en adjective)
Not]] [[deserve, deserving of trust; unreliable.
Synonyms
* inaccurate, insincere, unreliable
Antonyms
* true, accurate, sincere, faithful, reliable.
unsound
English
Adjective
(en-adj)
Not sound; not whole; not solid; defective; infirm; diseased.
In horse management an unsound horse is one suffering ill-health that affects its suitability for its intended work.
*
Antonyms
* sound