minatory

from WordNet (r) 3.0 (2006)

minatory
    adj 1: threatening or foreshadowing evil or tragic developments;
           "a baleful look"; "forbidding thunderclouds"; "his tone
           became menacing"; "ominous rumblings of discontent";
           "sinister storm clouds"; "a sinister smile"; "his
           threatening behavior"; "ugly black clouds"; "the
           situation became ugly" [syn: {baleful}, {forbidding},
           {menacing}, {minacious}, {minatory}, {ominous},
           {sinister}, {threatening}]

from The Collaborative International Dictionary of English v.0.48

Minatory \Min"a*to*ry\, a. [L. minatorius, fr. minari to
   threaten. See {Menace}.]
   Threatening; menacing. --Bacon.
   [1913 Webster]

from Moby Thesaurus II by Grady Ward, 1.0

21 Moby Thesaurus words for "minatory":
      abusive, bludgeoning, blustering, browbeating, bulldozing,
      bullying, comminatory, denunciatory, fear-inspiring, foreboding,
      hectoring, imminent, intimidating, lowering, menacing, minacious,
      ominous, terroristic, terrorizing, threatening, threatful

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