Trustworthy is a related term of helpful.
As adjectives the difference between trustworthy and helpful
is that trustworthy is deserving of trust, reliable while helpful is furnishing help; giving aid; useful.
trustworthy
English
Synonyms
* believable
* convincing
* credible
* dependable
* ethical
* honest
* honorable
* kosher
* principled
* reliable
* responsible
* righteous
* secure
* sensible
* straight
* true
* trusty
* truthful
* unfailing
Antonyms
* untrustworthy
helpful
English
Alternative forms
* helpfull (archaic)
Adjective
(
en adjective)
Furnishing help; giving aid; useful.
See also
* helpfully
* helpfulness