WordReference Random House Unabridged Dictionary of American English © 2026
trust•less
(trust′lis),USA pronunciation adj.
trust′less•ly, adv.
trust′less•ness, n.
- not worthy of trust;
faithless;
unreliable;
false:He was trustless when money was involved. - distrustful;
suspicious:a doorman trustless of all strangers.
- trust + -less 1520–30
trust′less•ness, n.