Unconditional = without conditions, non-conditional, un-conditional.
I love you even though, I love you even if, I love you regardless of, I love you equally. Unconditional statements
I love you when, I love you because, I love you if, I love you but. Conditional statements - people get these confused with unconditional.
A mother loves her child, but more so than other children, because it is her child - Conditional love
If you really want to know what unconditional love is look at Jesus. How much do you sacrifice your 'self' compared to running from situations that might affect your 'self'. Condition: as long as it doesn't affect me. To get to the extreme point of unconditional love, what would you do if you were about to be crucified, and you could either run away and forget about it, or it was God's will and you were meant to?
Maybe the whole version of events with Jesus' death are to show what true selflessness is, that even in great fear, we can do God's will. (When we fear that is when we are tested as to our religious beliefs) Would you do that for all the billions of people in this world?
Condition: I love people who have Christian values more than those who don't.
Condition: I love x, but I don't love y.
Unconditional: I love people equally, and do not define my love for people based on my judgement of them first.
Unconditional: If I see something I do not like, or maybe hate, then it is only love which can fix it, not my judgement.
Judgement is very much the enemy of unconditional love.