I`ve read that word so often, always connected with making life in the corner involving a ko.

but what does this term mean? where`s the difference to conditional life?

thx!

Well literally it means that the life of the group is not conditional - it's not based on who wins a ko or who has sente. Basically it's alive no matter what (given optimal play).

edit:
http://senseis.xmp.net/?UnconditionalLife

now i got it!

thx