Borderline

bor·der·line [bawr-der-lahyn]
adjective
1. on or near a border.
2. uncertain; ambiguous:
3. showing bad taste or disdain.
4. approaching, but not meeting, an accepted or expected standard.
5. exhibiting borderline personality disorder.
noun
6. a person who has borderline personality disorder.
7. a boundary or accepted division.
==Origin==
1865-70; border + line1
==Synonyms==
4. marginal
Category:B
Category:Adjectives
Category:Nouns