infallible

a.不会犯错的；一惯正确的

inexpedient, inexpensive, inexpensively, inexperience, inexperienced, inexpert, inexpertly, inexpiable, inexplicability, inexplicable, inexplicably, inexplicit, inexpressible, inexpressibly, inextinguishable, inextinguishably, inextricable, inextricably, inf, infallibility, infallibly, infamous, infamously, infamy, infancy, infant, infant prodigy, infant school, infanticide, infantile, infantile paralysis, infantilism, infantry, infantryman, infatuate, infatuated, infatuation, infect, infection, infectious,