Examples of usage:

  1. Well, the temptation came, the unused and untrustworthy limbs were summoned to act, his consciousness of doing wrong enfeebled him still further, and made them still more nervous. "A Lecture on Physical Development, and its Relations to Mental and Spiritual Development, delivered before the American Institute of Instruction, at their Twenty-Ninth Annual Meeting, in Norwich, Conn., August 20, 1858" by S.R. Calthrop
  2. The abstention policy of 1867- 68 resulted in an almost complete withdrawal of the influence of the conservatives for the two years, 1868- 70. As a class they were regarded by the dominant party in state and nation as dangerous and untrustworthy and were persecuted in such irritating ways that many became indifferent to the appeals of civil duty. "The Sequel of Appomattox A Chronicle of the Reunion of the States, Volume 32 In The Chronicles Of America Series" by Walter Lynwood Fleming
  3. Afterwards his malady progressed so that he couldn't know himself to be untrustworthy; his judgment was impaired, and he planned and would have tried to carry out many things which would have been disastrous for the company. "The Indian Drum" by William MacHarg Edwin Balmer

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