un-American

adj 1 againstwhat are thought to be normal American customs orvalues 非美国的; 不合美国风俗习惯或价值观念的: Statecontrol is a very un-American notion. 实行国家控制是根本违背美国观念的. 2 against the political interests of the USA 违反美国政治利益的; 反美的; 非美的: un-American activities, eg spying 非美活动（如针对美国的间谍活动）.

ultramarine, ultrasonic, ultrasound, ultraviolet, ululate, ululation, Ulyanovsk, umber, umbilical, umbilical cord, umbilicus, umbra, umbrage, umbrella, umlaut, umpire, umpteen, umpteenth, un, un-, unabashed, unabated, unable, unabridged, unacceptable, unacceptably, unaccommodating, unaccompanied, unaccountable, unaccountably, unaccounted, unaccustomed, unacknowledged, unadopted, unadulterated, unaffected, unaffordable, unafraid, unaided, unalloyed,