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borderline

[ bawr-der-lahyn ]
/ ˈbɔr dərˌlaɪn /
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See synonyms for: borderline / borderlines on Thesaurus.com

adjective
on or near a border or boundary.
uncertain; indeterminate; debatable: not an alcoholic, but a borderline case.
not quite meeting accepted, expected, or average standards.
approaching bad taste or obscenity: He made several borderline remarks that offended them.
noun
a person suffering from borderline personality disorder.
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Origin of borderline

First recorded in 1865–70; border + line1

Other definitions for borderline (2 of 2)

border line

noun
boundary line; frontier.

Origin of border line

First recorded in 1865–70
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

How to use borderline in a sentence

British Dictionary definitions for borderline

borderline
/ (ˈbɔːdəˌlaɪn) /

noun
a border; dividing line; line of demarcation
an indeterminate position between two conditions or qualitiesthe borderline between friendship and love
adjective
on the edge of one category and verging on anothera borderline failure in the exam
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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