[1] : The Collaborative International Dictionary of English v.0.48

fearful \fear"ful\ f=er"f.ul, a.
   1. full of fear, apprehension, or alarm; afraid; frightened.
      1913 webster

            anxious amidst all their success, and fearful amidst
            all their power.                      --bp.
                                                  warburton.
      1913 webster

   2. inclined to fear; easily frightened; without courage;
      timid.
      1913 webster

            what man is there that is fearful and faint-hearted?
                                                  --deut. xx. 8.
      1913 webster

   3. indicating, or caused by, fear.
      1913 webster

            cold fearful drops stand on my trembling flesh.
                                                  --shak.
      1913 webster

   4. inspiring fear or awe; exciting apprehension or terror;
      terrible; frightful; dreadful.
      1913 webster

            this glorious and fearful name, the lord thy god.
                                                  --deut.
                                                  xxviii. 58.
      1913 webster

            death is a fearful thing.             --shak.
      1913 webster

            in dreams they fearful precipices tread. --dryden.

   syn: apprehensive; afraid; timid; timorous; horrible;
        distressing; shocking; frightful; dreadful; awful.
        1913 webster

[2] : WordNet (r) 2.0

fearful
     adj 1: causing fear or dread or terror; "the awful war"; "an awful
            risk"; "dire news"; "a career or vengeance so direful
            that london was shocked"; "the dread presence of the
            headmaster"; "polio is no longer the dreaded disease
            it once was"; "a dreadful storm"; "a fearful howling";
            "horrendous explosions shook the city"; "a terrible
            curse" syn: awful, dire, direful, dreada, dreaded,
             dreadful, fearsome, frightening, horrendous,
            horrific, terrible
     2: lacking courage; ignobly timid and faint-hearted; "cowardly
        dogs, ye will not aid me then"- p.b.shelley syn: cowardly
        ant: brave
     3: extremely distressing; "fearful slum conditions"; "a
        frightful mistake"; "suffered terrible thirst" syn: frightful,
         terrible
     4: timid by nature or revealing timidity; "timorous little
        mouse"; "in a timorous tone"; "cast fearful glances at the
        large dog" syn: timorous, trepid
     5: experiencing or showing fear; "a fearful glance"; "fearful
        of criticism"
see also:
awful dire direful dreada dreaded dreadful 
fearsome frightening horrendous horrific terrible 
cowardly brave frightful timorous trepid 

[3] : Moby Thesaurus II by Grady Ward, 1.0

163 moby thesaurus words for "fearful":
   aflutter, afraid, aghast, agitated, alarmed, alarming, all nerves,
   all-overish, anxious, anxioused up, appalling, apprehensive,
   atrocious, awful, awing, baleful, bashful, bothered, chicken,
   chickenhearted, chilling, concerned, coward, cowardly, cowed,
   daunted, daunting, deadly, deterrent, deterring, diffident, dire,
   direful, discomposed, disconcerting, discouraging, disgusting,
   disheartening, dismayed, dismaying, disquieted, disquieting,
   disturbed, dreadful, edgy, excitable, fainthearted, fear-inspiring,
   fearing, fearsome, foreboding, formidable, frightened, frightening,
   frightful, funking, funky, ghastly, goosy, grim, grisly, gruesome,
   heinous, henhearted, hesitant, hideous, high-strung, horrendous,
   horrible, horrific, horrifying, howling, in a pucker, in a stew,
   in fear, intimidated, irritable, jittery, jumpy, lily-livered,
   loathsome, lurid, macabre, malign, milk-livered, milksoppish,
   milksoppy, misgiving, monstrous, mousy, nauseating, nauseous,
   nerves on edge, nervous, nervy, on edge, on tenterhooks,
   overanxious, overapprehensive, overawing, overstrung, overtimid,
   overtimorous, overwhelming, panic-prone, panic-stricken, panicky,
   perturbed, pigeonhearted, pusillanimous, rabbity, redoubtable,
   repugnant, repulsive, revolting, rousing, scared, scaring, scary,
   shaky, shivery, shocking, shrinking, shy, sinister, sissified,
   sissy, skittery, skittish, soft, solicitous, startling, startlish,
   strained, sublime, suspenseful, tense, terrible, terrific,
   terrified, terrifying, terror-stricken, thumping, timid, timorous,
   trembling, tremendous, tremulous, trepidant, trigger-happy,
   troubled, uneasy, unmanly, unmanned, unspeakable, unwilling, weak,
   weak-kneed, weakhearted, whacking, white-livered, yellow,
   zealous

Fearful >> F Words
Fearful, definition of term: Fearful
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