unscrupulous or unprincipled: an unconscionable liar immoderate or excessive: unconscionable demands
WordReference Random House Learner's Dictionary of American English © 2025
un•con•scion•a•ble /ʌnˈkɑnʃənəbəl/USA pronunciation
adj.
WordReference Random House Unabridged Dictionary of American English © 2025- not held back by conscience;
unscrupulous:unconscionable deeds. - excessive:spent an unconscionable amount of money.
un•con•scion•a•ble
(un kon′shə nə bəl),USA pronunciation adj.
un•con′scion•a•bil′i•ty, n.
un•con′scion•a•bly, adv.
- not guided by conscience;
unscrupulous. - not in accordance with what is just or reasonable:unconscionable behavior.
- excessive;
extortionate:an unconscionable profit.
- un-1 + conscionable 1555–65
un•con′scion•a•bly, adv.
- 3.See corresponding entry in Unabridged extreme, immoderate, unwarranted, inordinate.
Collins Concise English Dictionary © HarperCollins Publishers::
'unconscionable' also found in these entries (note: many are not synonyms or translations):