unimpressive

a. 无印象的,印象淡薄的

unicorn, unidentified, unidimensional, unidirectionally, unification, unified, uniform, uniformed, uniformity, uniformly, unify, unilateral, unilaterally, unimaginative, unimpassioned, unimpeachable, unimpeachably, unimpeded, unimportant, unimpressed, uninformative, uninformed, uninhabitable, uninhabited, uninspired, uninspiring, unintelligible, unintelligibly, unintended, unintentional, uninterested, uninteresting, uninviting, union, unionism, unionist, unionization, unionisation, unionize, unionise, unique, uniquely,