unclear

a. 不易了解的,不清楚的,含混的

unceremonious, unceremoniously, uncertain, uncertainly, uncertainty, unchallenged, unchangeable, unchanging, uncharacteristic, uncharitable, uncharitably, uncharted, unchecked, unchristian, uncivil, uncle, Uncle Sam, Uncle Tom, unclean, uncleanness, uncoil, uncoloured (US uncolored), uncomfortable, uncomfortably, uncommitted, uncommon, uncommonly, uncommunicative, uncomplicated, uncompromising, uncompromisingly, unconcealable, unconcern, unconcerned, unconcernedly, unconditional, unconditionally, unconditioned, unconfirmed, unconscionable,