The Collaborative International Dictionary of English v.0.48:

Altogether \Al`to*geth"er\, adv. [OE. altogedere; al all +
   togedere together. See Together.]
   1. All together; conjointly. [Obs.]
      [1913 Webster]

            Altogether they went at once.         --Chaucer.
      [1913 Webster]

   2. Without exception; wholly; completely.
      [1913 Webster]

            Every man at his best state is altogether vanity.
                                                  --Ps. xxxix.
                                                  5.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

altogether \altogether\ n.
   1. nakedness; -- used mostly in the phrase "in the
      altogether". [informal]

   Syn: raw, buff, birthday suit
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

altogether
    adv 1: to a complete degree or to the full or entire extent
           (`whole' is often used informally for `wholly'); "he was
           wholly convinced"; "entirely satisfied with the meal";
           "it was completely different from what we expected"; "was
           completely at fault"; "a totally new situation"; "the
           directions were all wrong"; "it was not altogether her
           fault"; "an altogether new approach"; "a whole new idea"
           [syn: wholly, entirely, completely, totally,
           all, altogether, whole] [ant: part, partially,
           partly]
    2: with everything included or counted; "altogether he earns
       close to a million dollars" [syn: altogether, all told,
       in all]
    3: with everything considered (and neglecting details);
       "altogether, I'm sorry it happened"; "all in all, it's not so
       bad" [syn: all in all, on the whole, altogether, tout
       ensemble]
    n 1: informal terms for nakedness; "in the raw"; "in the
         altogether"; "in his birthday suit" [syn: raw,
         altogether, birthday suit]

Moby Thesaurus II by Grady Ward, 1.0:

141 Moby Thesaurus words for "altogether":
   above, absolutely, across the board, additionally, again, all,
   all in all, all included, all put together, all things considered,
   all told, also, among other things, and all, and also, and so,
   as a body, as a rule, as a whole, as an approximation, as well,
   at large, au reste, bareness, beside, besides, beyond,
   birthday suit, bodily, broadly, broadly speaking, by and large,
   chiefly, collectively, commonly, completely, comprehensively,
   corporately, decollete, ecdysiast, else, en bloc, en masse,
   en plus, entirely, exactly, exhaustively, extra, farther,
   for lagniappe, fully, further, furthermore, generally,
   generally speaking, globally, gymnosophist, gymnosophy,
   hundred per cent, in a body, in addition, in all, in all respects,
   in bulk, in full, in full measure, in general, in its entirety,
   in the aggregate, in the gross, in the lump, in the main,
   in the mass, in toto, inclusively, inside out, integrally,
   inter alia, into the bargain, item, just, largely, likewise,
   mainly, more, moreover, mostly, nakedness, naturism, naturist,
   normally, not a stitch, nudism, nudist, nudity, on all counts,
   on balance, on the side, on the whole, on top of, one and all,
   ordinarily, outright, over, overall, perfectly, plumb, plus,
   predominantly, prevailingly, quite, right, roughly,
   roughly speaking, roundly, routinely, similarly,
   speaking generally, state of nature, stick, stripper, stripteaser,
   the altogether, the nude, the raw, then, therewith, thoroughly,
   to boot, to the hilt, too, toplessness, totally, tout a fait,
   tout ensemble, unconditionally, unreservedly, usually, utterly,
   wholly, yet