Source : Webster's Revised Unabridged Dictionary (1913)

Bad \Bad\ (b[a^]d), imp. of {Bid}.
   Bade. [Obs.] --Dryden.

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.

Bid \Bid\ (b[i^]d), v. t. [imp. {Bade} (b[a^]d), {Bid}, (Obs.)
   {Bad}; p. p. {Bidden}, {Bid}; p. pr. & vb. n. {Bidding}.]
   [OE. bidden, prop to ask, beg, AS. biddan; akin to OS.
   biddian, Icel. bi[eth]ja, OHG. bittan, G. bitten, to pray,
   ask, request, and E. bead, also perh. to Gr. teiqein to
   persuade, L. fidere to trust, E. faith, and bide. But this
   word was early confused with OE. beden, beoden, AS.
   be['o]dan, to offer, command; akin to Icel. bj[=o][eth]a,
   Goth. biudan (in comp.), OHG. biotan to command, bid, G.
   bieten, D. bieden, to offer, also to Gr. pynqa`nesqai to
   learn by inquiry, Skr. budh to be awake, to heed, present
   OSlav. bud[=e]ti to be awake, E. bode, v. The word now has
   the form of OE. bidden to ask, but the meaning of OE. beden
   to command, except in ``to bid beads.'' [root]30.]
   1. To make an offer of; to propose. Specifically : To offer
      to pay ( a certain price, as for a thing put up at
      auction), or to take (a certain price, as for work to be
      done under a contract).

   2. To offer in words; to declare, as a wish, a greeting, a
      threat, or defiance, etc.; as, to bid one welcome; to bid
      good morning, farewell, etc.

            Neither bid him God speed.            --2. John 10.

            He bids defiance to the gaping crowd. --Granrille.

   3. To proclaim; to declare publicly; to make known. [Mostly
      obs.] ``Our banns thrice bid !'' --Gay.

   4. To order; to direct; to enjoin; to command.

            That Power who bids the ocean ebb and flow. --Pope

            Lord, if it be thou, bid me come unto thee. --Matt.
                                                  xiv. 28

            I was bid to pick up shells.          --D. Jerrold.

   5. To invite; to call in; to request to come.

            As many as ye shall find, bid to the marriage.
                                                  --Matt. xxii.
                                                  9

   {To bid beads}, to pray with beads, as the Roman Catholics;
      to distinguish each bead by a prayer. [Obs.]

   {To bid defiance to}, to defy openly; to brave.

   {To bid fair}, to offer a good prospect; to make fair
      promise; to seem likely.

   Syn: To offer; proffer; tender; propose; order; command;
        direct; charge; enjoin.

Source : WordNet®

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}]

Source : Free On-Line Dictionary of Computing

BAD
     
        /B-A-D/ Broken As Designed, a play on "{working as designed}",
        from {IBM}.  Failing because of bad design and misfeatures
        rather than because of bugs.
     
        [{Jargon File}]
     
        (2002-04-14)