[1] : WordNet (r) 2.0

unethical
     adj 1: not conforming to approved standards of social or
            professional behavior; "unethical business practices"
            ant: ethical
     2: not adhering to ethical or moral principles; "base and
        unpatriotic motives"; "a base, degrading way of life";
        "cheating is dishonorable"; "they considered colonialism
        immoral"; "unethical practices in handling public funds"
        syn: base, dishonorable, dishonourable, immoral
see also:
ethical base dishonorable dishonourable immoral 

[2] : Moby Thesaurus II by Grady Ward, 1.0

44 moby thesaurus words for "unethical":
   amoral, conscienceless, corrupt, corrupted, criminal, crooked,
   dark, devious, dishonest, dishonorable, doubtful, dubious, evasive,
   felonious, fishy, fraudulent, ill-got, ill-gotten, immoral,
   indirect, insidious, mercenary, not kosher, questionable, rotten,
   shady, shameless, shifty, sinister, slippery, suspicious, tricky,
   unconscienced, unconscientious, unconscionable, underhand,
   underhanded, unprincipled, unsavory, unscrupulous,
   unstraightforward, venal, without remorse, without shame

Unethical >> U Words
Unethical, definition of term: Unethical
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