Bible Greek and Hebrew Dictionaries combined for Word Studies
Genesis Chapter 1
reasonable 3050 # logikos {log-ik-os'}; from 3056; rational ("logical"): -- {reasonable}, of the word.
unreasonable 0249 # alogos {al'-og-os}; from 1 (as a negative particle) and 3056; irrational: -- brute, {unreasonable}.
unreasonable 0824 # atopos {at'-op-os}; from 1 (as a negative particle) and 5117; out of place, i.e. (figuratively) improper, injurious, wicked: -- amiss, harm, {unreasonable}.