obnoxiousinsolente, detestável = unpleasant in a way that makes people feel offended, annoyed, or disgusted; hateful; offensive; "some teenagers were being loud and obnoxious"
obtrude (to)intrometer-se, invadir, irromper = to thrust forward; to impose without invitation or need
ooze (to)gotejar, pingar, esvair-se, fluir (líquido), exsudar = to flow or leak out slowly, as through pores or very small holes; "sap oozed from the tree"; "the cut on her finger was oozing blood"
outageblecaute, falha no fornecimento de energia = a failure or interruption in use or functioning
outpace (to)ultrapassar = to surpass in speed
overshoot (to)passar