deserving of trust or confidence; dependable; reliable: The treasurer was not entirely trustworthy.

Origin of trustworthy

First recorded in 1800–10; trust + worthy
Related formstrust·wor·thi·ly, adverbtrust·wor·thi·ness, nounun·trust·wor·thi·ly, adverbun·trust·wor·thi·ly·ness, nounun·trust·wor·thy, adjective

Synonyms for trustworthy Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for trustworthy

Contemporary Examples of trustworthy

Historical Examples of trustworthy

  • We'll row, and send it back to you here by some one who is trustworthy.

    It Happened in Egypt

    C. N. Williamson

  • No mechanic has a set of customers so trustworthy as God and the elements.

  • Yet, from the home standpoint she had been trustworthy, more trustworthy than most.

  • But she had been Jan's nurse, and was faithful and trustworthy beyond words.

    Jan and Her Job

    L. Allen Harker

  • I take it that trustworthy and honest in tangible things are much the same.

    Jan and Her Job

    L. Allen Harker

British Dictionary definitions for trustworthy



worthy of being trusted; honest, reliable, or dependable
Derived Formstrustworthily, adverbtrustworthiness, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for trustworthy

1791, from trust (n.) + worthy. Related: Trustworthiness.

Online Etymology Dictionary, © 2010 Douglas Harper