Emily Dickinson Lexicon

UN-CON'SCION-A-BLE, a.

1. Unreasonable; exceeding the limits of any reasonable claim or expectation; as, an unconscionable request or demand. L'Estrange.
2. Forming unreasonable expectations. You can not be so unconscionable as to expect this sacrifice on my part.
3. Enormous; vast; as, unconscionable size or strides. [Not elegant.]
4. Not guided or influenced by conscience. South.