I'll explain to you, gibson, the definition of objective....Again.
Object: any entity.
Objective: having the quality and/or quality of having properties that are exclusive to the referenced entity.
Example: The rubber ball is 5 ounces.
Analysis:
Object: Rubber ball.
Objective: is 5 ounces.
Another example: X is irrational.
Object: X
Objective: is irrational.
Lets dig deeper here on the part claimed to be objective here, because this one is not easily understood by you. How do we define irrational? Irrational tends to mean in contradiction/opposition/lacking-of reason. So, when someone says X is irrational, they are saying X is not reasoning or thinking reasonably well. Okay, now we got that part down, lets go to the next step, how does anyone know X is irrational? There are a number means to measure it such as observation of the actions taken by X, the responses X gives to questions, and/or the premises X gives for X's behavior(s). Under each possible means of measurement each one is objective since each means of measurement is exclusive for each property measured. More importantly, the measurement itself is invariant. You can't get another scale for irrationality that is radically different from another scale, not even in ordinal cases [example of this would be that metric and imperial are both correct despite having different ordinal scales].
So, gibson, what part of that don't you grasp?
-- Bridget