The Collaborative International Dictionary of English v.0.48:

Troublous \Trou"blous\, a.
   Full of trouble; causing trouble. "In doubtful time of
   troublous need." --Byron.
   [1913 Webster]

         A tall ship tossed in troublous seas.    --Spenser.
   [1913 Webster]

WordNet (r) 3.0 (2006):

troublous
    adj 1: full of trouble; "these are troublous times"

Moby Thesaurus II by Grady Ward, 1.0:

84 Moby Thesaurus words for "troublous":
   adverse, agitated, anarchic, angry, antagonistic, blustering,
   blusterous, blustery, chaotic, conflicting, contrary, counter,
   counteractive, detrimental, difficult, discomposed, disquieted,
   disturbed, excited, feverish, fidgety, flurried, flustered,
   frantic, frenzied, furious, hard, harmful, hellish, hostile,
   in opposition, infuriate, inimical, insensate, jittery, jumpy, mad,
   mean, mindless, miserable, nervous, nervy, not easy, opposed,
   opposing, opposite, orgasmic, orgastic, pandemoniac, perturbed,
   pesky, raging, ravening, raving, restless, rigorous, rip-roaring,
   ruffled, shaken, shaken up, sinister, stirred up, storming, stormy,
   stressful, tempestuous, troubled, troublesome, troubling, trying,
   tumultuous, turbulent, ugly, uneasy, unfavorable, unpeaceful,
   unquiet, untoward, uproarious, upset, vexatious, wicked, wild,
   wretched