| Evidence of the speaker's unreliability or insincerity may defeat or override his prima facie warrant for acceptance. |
| Many scientific instruments have been developed because of the unreliability or inadequacy of perception. |
| Businesses have complained of unreliability and, in some cases, resorted to insisting customers send routine letters by recorded delivery. |
| Another of Tourgee's lines of argumentation in the Plessy case depended on the unreliability of train conductors in determining race. |
| The reasons for the increased use of mobile phones also include the low quality and unreliability of fixed-line services. |
| Torture evidence is utterly to be rejected here not only because of its iniquity but also because of its manifest unreliability. |
