The phrase "unreasonable positions" refers to opinions, beliefs, or ideas that are not based on logic, common sense, or rational thinking. It means having thoughts or arguments that are unrealistic, impractical, or illogical. Full definition
This earlier report concludes that self - represented litigants tend to take unreasonable positions in family law disputes which ultimately reduce the likelihood that these disputes will resolve without a trial. (slaw.ca)
If you are unable to settle separation issues through negotiations, litigation or arbitration may be necessary, particularly if your spouse is not cooperative or takes unreasonable positions. (familylawtoronto.ca)
For a party who agreed to mediation but then caused the mediation to fail by his reason of unreasonable position in the mediation was in reality in the same position as a party who unreasonably refused to mediate. (newlawjournal.co.uk)