Two issues to think about
What is the scope of the variable (in other words: are you speaking about a local variable or a field?) ?
A local variable has a narrower scope compared to a field. In particular, if the variable is used inside a relatively short method I would not care so much about its name. When the scope is large naming is more important.
I think there's an inherent conflict in the way you treat this variable. On the one hand you say "false when an object is the last in a list", where on the other hand you also want to call it "inFront". An object that is (not) last in the list does not strike me as (not) inFront. This I would go with isLast.
