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trustworthy

[truhst-wur-th ee]
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adjective
  1. deserving of trust or confidence; dependable; reliable: The treasurer was not entirely trustworthy.
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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

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true, accurate, honest, faithful. See reliable.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for trustworthiness

trustworthy

adjective
  1. worthy of being trusted; honest, reliable, or dependable
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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 trustworthiness

trustworthy

adj.

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

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Online Etymology Dictionary, © 2010 Douglas Harper