vague
adj.
"uncertain as to specifics," 1540s, from Middle French vague "empty, vacant; wild, uncultivated; wandering" (13c.), from Latin vagus "strolling, wandering, rambling," figuratively "vacillating, uncertain," of unknown origin. Related: Vagueness.
〔李〕[vag;-uea.] a.含糊的，模糊的，不明确的； 无表情的 ←vag (L vagari,vagus)=to wander 徘徊
〔蒋〕[vag漫游，游荡→游移不定→(语义)不确定，不明确] 含糊的，不明确的