Source : Webster's Revised Unabridged Dictionary (1913)

Worse \Worse\, n.
   1. Loss; disadvantage; defeat. ``Judah was put to the worse
      before Israel.'' --Kings xiv. 12.

   2. That which is worse; something less good; as, think not
      the worse of him for his enterprise.

Worse \Worse\, a., compar. of {Bad}. [OE. werse, worse, wurse,
   AS. wiersa, wyrsa, a comparative with no corresponding
   positive; akin to OS. wirsa, OFries. wirra, OHG. wirsiro,
   Icel. verri, Sw. v["a]rre, Dan. v["a]rre, Goth. wa['i]rsiza,
   and probably to OHG. werran to bring into confusion, E. war,
   and L. verrere to sweep, sweep along. As bad has no
   comparative and superlative, worse and worst are used in lieu
   of them, although etymologically they have no relation to
   bad.]
   Bad, ill, evil, or corrupt, in a greater degree; more bad or
   evil; less good; specifically, in poorer health; more sick;
   -- used both in a physical and moral sense.

         Or worse, if men worse can devise.       --Chaucer.

         [She] was nothing bettered, but rather grew worse.
                                                  --Mark v. 26.

         Evil men and seducers shall wax worse and worse. --2
                                                  Tim. iii. 13.

         There are men who seem to believe they are not bad
         while another can be found worse.        --Rambler.

         ``But I love him.'' ``Love him? Worse and worse.''
                                                  --Gay.

Worse \Worse\, adv. [AS. wiers, wyrs; akin to OS. & OHG. wirs,
   Icel. verr, Goth, wa['i]rs; a comparative adverb with no
   corresponding positive. See {Worse}, a.]
   In a worse degree; in a manner more evil or bad.

         Now will we deal worse with thee than with them. --Gen.
                                                  xix. 9.

Worse \Worse\, v. t. [OE. wursien, AS. wyrsian to become worse.]
   To make worse; to put disadvantage; to discomfit; to worst.
   See {Worst}, v.

         Weapons more violent, when next we meet, May serve to
         better us and worse our foes.            --Milton.

Bad \Bad\ (b[a^]d), a. [Compar. {Worse}; superl. {Worst}. ]
   [Probably fr. AS. b[ae]ddel hermaphrodite; cf. b[ae]dling
   effeminate fellow.]
   Wanting good qualities, whether physical or moral; injurious,
   hurtful, inconvenient, offensive, painful, unfavorable, or
   defective, either physically or morally; evil; vicious;
   wicked; -- the opposite of {good}; as, a bad man; bad
   conduct; bad habits; bad soil; bad health; bad crop; bad
   news.

   Note: Sometimes used substantively.

               The strong antipathy of good to bad. --Pope.

   Syn: Pernicious; deleterious; noxious; baneful; injurious;
        hurtful; evil; vile; wretched; corrupt; wicked; vicious;
        imperfect.

Source : WordNet®

worse
     adv : (comparative of `ill') in a less effective or successful or
           desirable manner; "he did worse on the second exam"

worse
     adj 1: (comparative of `bad') inferior to another in quality or
            condition or desirability; "this road is worse than
            the first one we took"; "the road is in worse shape
            than it was"; "she was accused of worse things than
            cheating and lying" [ant: {better}]
     2: changed for the worse in health or fitness; "I feel worse
        today"; "her cold is worse" [syn: {worsened}] [ant: {better}]
     n : something inferior in quality or condition or effect; "for
         better or for worse"; "accused of cheating and lying and
         worse"

worse
     See {bad}

bad
     adj 1: having undesirable or negative qualities; "a bad report
            card"; "his sloppy appearance made a bad impression";
            "a bad little boy"; "clothes in bad shape"; "a bad
            cut"; "bad luck"; "the news was very bad"; "the
            reviews were bad"; "the pay is bad"; "it was a bad
            light for reading"; "the movie was a bad choice" [ant:
             {good}]
     2: very intense; "a bad headache"; "in a big rage"; "had a big
        (or bad) shock"; "a bad earthquake"; "a bad storm" [syn: {big}]
     3: feeling physical discomfort or pain (`tough' is occasionally
        used colloquially for `bad'); "my throat feels bad"; "she
        felt bad all over"; "he was feeling tough after a restless
        night" [syn: {tough}]
     4: (of foodstuffs) not in an edible or usable condition; "bad
        meat"; "a refrigerator full of spoilt food" [syn: {spoiled},
         {spoilt}]
     5: not capable of being collected; "a bad (or uncollectible)
        debt" [syn: {uncollectible}]
     6: below average in quality or performance; "a bad chess
        player"; "a bad recital"
     7: nonstandard; "so-called bad grammar"
     8: not financially safe or secure; "a bad investment"; "high
        risk investments"; "anything that promises to pay too much
        can't help being risky"; "speculative business
        enterprises" [syn: {insecure}, {risky}, {high-risk}, {speculative}]
     9: physically unsound or diseased; "has a bad back"; "a bad
        heart"; "bad teeth"; "an unsound limb"; "unsound teeth"
        [syn: {unfit}, {unsound}]
     10: capable of harming; "bad habits"; "bad air"; "smoking is bad
         for you"
     11: keenly sorry or regretful; "felt bad about letting the team
         down"; "was sorry that she had treated him so badly";
         "felt bad about breaking the vase" [syn: {sorry}]
     12: characterized by wickedness or immorality; "led a very bad
         life" [syn: {immoral}]
     13: reproduced fraudulently; "like a bad penny..."; "a forged
         twenty dollar bill" [syn: {forged}]
     14: not working properly; "a bad telephone connection"; "a
         defective appliance" [syn: {defective}]
     [also: {worst}, {worse}]

bad
     n : that which is below standard or expectations as of ethics or
         decency; "take the bad with the good" [syn: {badness}]
         [ant: {good}, {good}]
     [also: {worst}, {worse}]

bad
     adv 1: with great intensity (`bad' is a nonstandard variant for
            `badly'); "the injury hurt badly"; "the buildings were
            badly shaken"; "it hurts bad"; "we need water bad"
            [syn: {badly}]
     2: very much; strongly; "I wanted it badly enough to work hard
        for it"; "the cables had sagged badly"; "they were badly
        in need of help"; "he wants a bicycle so bad he can taste
        it" [syn: {badly}]
     [also: {worst}, {worse}]