intentionally

from WordNet (r) 3.0 (2006)

intentionally
    adv 1: with intention; in an intentional manner; "he used that
           word intentionally"; "I did this by choice" [syn:
           {intentionally}, {deliberately}, {designedly}, {on
           purpose}, {purposely}, {advisedly}, {by choice}, {by
           design}] [ant: {accidentally}, {by chance},
           {circumstantially}, {unexpectedly}, {unintentionally}]

from The Collaborative International Dictionary of English v.0.48

Intentionally \In*ten"tion*al*ly\, adv.
   In an intentional manner; with intention; by design; of
   purpose.
   [1913 Webster]

from Moby Thesaurus II by Grady Ward, 1.0

23 Moby Thesaurus words for "intentionally":
      advisedly, by design, calculatedly, consciously, contemplatedly,
      deliberately, designedly, in cold blood, knowingly, meditatedly,
      on purpose, pointedly, premeditatedly, purposefully, purposely,
      purposively, voluntarily, willfully, with full intent, with intent,
      with malice aforethought, with purpose, wittingly

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