The Collaborative International Dictionary of English v.0.48:

Inward \In"ward\, n.
   1. That which is inward or within; especially, in the plural,
      the inner parts or organs of the body; the viscera. --Jer.
      Taylor.
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            Then sacrificing, laid the inwards and their fat.
                                                  --Milton.
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   2. The mental faculties; -- usually pl. [Obs.]
      [1913 Webster]

   3. An intimate or familiar friend or acquaintance. [Obs.] "I
      was an inward of his." --Shak. Inward

The Collaborative International Dictionary of English v.0.48:

Inward \In"ward\, Inwards \In"wards\, adv. [AS. inweard. The
   ending -s is prop. a genitive ending. See Inward, a.,
   -wards.]
   [1913 Webster]
   1. Toward the inside; toward the center or interior; as, to
      bend a thing inward.
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   2. Into, or toward, the mind or thoughts; inwardly; as, to
      turn the attention inward.
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            So much the rather, thou Celestial Light,
            Shine inward.                         --Milton.
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The Collaborative International Dictionary of English v.0.48:

Inward \In"ward\ ([i^]n*w[~e]rd), a. [AS. inweard, inneweard,
   innanweard, fr. innan, inne, within (fr. in in; see In) +
   the suffix -weard, E. -ward.]
   [1913 Webster]
   1. Being or placed within; inner; interior; -- opposed to
      outward. --Milton.
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   2. Seated in the mind, heart, spirit, or soul. "Inward
      beauty." --Shak.
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   3. Intimate; domestic; private. [Obs.]
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            All my inward friends abhorred me.    --Job xix. 19.
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            He had had occasion, by one very inward with him, to
            know in part the discourse of his life. --Sir P.
                                                  Sidney.
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WordNet (r) 3.0 (2006):

inward
    adv 1: toward the center or interior; "move the needle further
           inwards!" [syn: inward, inwards] [ant: outward,
           outwards]
    2: to or toward the inside of; "come in"; "smash in the door"
       [syn: in, inwards, inward]
    adj 1: relating to or existing in the mind or thoughts; "a
           concern with inward reflections" [ant: outward]
    2: directed or moving inward or toward a center; "the inbound
       train"; "inward flood of capital" [syn: inbound, inward]

Moby Thesaurus II by Grady Ward, 1.0:

89 Moby Thesaurus words for "inward":
   anonymous, bosom, center, central, closet, core, deep, deep-seated,
   deepest recesses, entering, esoteric, guts, heart, heart of hearts,
   immanent, implanted, implicit, in, inalienable, inbound, incognito,
   incoming, indoor, indwelling, infixed, inflooding, inflowing,
   ingoing, ingrained, ingressive, inherent, inland, inmost, innards,
   inner, inner landscape, inner life, inner man, inner nature,
   inner recess, inner self, innermost, inpouring, inshore, inside,
   insides, interior, interior man, intern, internal, internals,
   intestine, intimate, intrados, intrinsic, intrusive, invasive,
   inward-bound, inwardly, inwards, inwrought, irreducible, irruptive,
   isolated, penetralia, personal, private, privy, recesses, resident,
   retired, secluded, secret, secret place, secret places,
   sequestered, soul, stuffing, subjective, tripes, unalienable,
   unchallengeable, unquestionable, viscera, vital center, vitals,
   withdrawn, within, withinwards