unconscionable
adjective
[ ʌnˈkɒnʃ(ə)nəb(ə)l ]
• not right or reasonable.
• "the unconscionable conduct of his son"
Similar:
unethical,
amoral,
immoral,
unprincipled,
indefensible,
wrong,
unscrupulous,
unfair,
underhand,
dishonourable,
dishonest,
corrupt,
depraved,
shady,
Origin:
mid 16th century: from un-1 ‘not’ + obsolete conscionable, from conscience (interpreted as a plural) + -able.