Noah Webster's Dictionary (a.) Not reasonable; irrational; immoderate; exorbitant.

Multi-Version Concordance Unreasonable (3 Occurrences) Acts 25:27 For it seems to me unreasonable, in sending a prisoner, not to also specify the charges against him." (WEB KJV ASV WBS RSV NIV) 2 Thessalonians 3:2 and that we may be delivered from unreasonable and evil men; for not all have faith. (WEB KJV ASV WBS YLT) 1 Peter 2:18 Household servants, be submissive to your masters, and show them the utmost respect--not only if they are kind and thoughtful, but also if they are unreasonable. (WEY NAS)