borderline

bor·der·line

adj \-ˌlīn\

Definition of BORDERLINE

1

: being in an intermediate position or state : not fully classifiable as one thing or its opposite; especially : not quite up to what is usual, standard, or expected <borderline intelligence>

2

: exhibiting typical but not altogether conclusive symptoms <a borderline diabetic>

3

: of, relating to, being, or exhibiting a behavior pattern typical or suggestive of borderline personality disorder <a borderline patient> <borderline behavior>