infantile

adj. 幼稚的，幼儿的

inexplicably, inexplicit, inexpressible, inexpressibly, inextinguishable, inextinguishably, inextricable, inextricably, inf, infallibility, infallible, infallibly, infamous, infamously, infamy, infancy, infant, infant prodigy, infant school, infanticide, infantile paralysis, infantilism, infantry, infantryman, infatuate, infatuated, infatuation, infect, infection, infectious, infectiously, infectiousness, infelicitous, infelicity, infer, inferable, inference, inferential, inferentially, inferior,