infallible
adjective
[ ɪnˈfalɪb(ə)l ]
• incapable of making mistakes or being wrong.
• "doctors are not infallible"
Similar:
unerring,
error-free,
unfailing,
faultless,
flawless,
impeccable,
perfect,
true,
uncanny,
precise,
accurate,
meticulous,
scrupulous,
spot on,
on the money,
Origin:
late 15th century: from French infaillible or late Latin infallibilis, from in- ‘not’ + Latin fallere ‘deceive’.
