borderline

B3O1R1D2E1R1L1I1N1E1
US/ˈboɹ.dɚˌlaɪn/

adjective

Nearly; not clearly on one side or the other of a border or boundary, ambiguous.

“He is borderline hypoglycemic and needs to monitor his sugar intake.”

Less commonScrabble 13

Meanings

adjectiveborderline (comparative more borderline, superlative most borderline)

comparative more borderline · superlative most borderline · alternative border-line

  1. Nearly; not clearly on one side or the other of a border or boundary, ambiguous.

    I would rather hire a talented layman than a university graduate with borderline qualifications.

    1 more example

    It recalls the business case for Scotland's reopening of the Borders Railway to Tweedbank, that British Rail closed in 1969. The review says the business case for this was at best borderline, but goes on to say that the case greatly underestimated passenger demand and that the railway Scotland built has capped its capacity.

    2023 September 6, Philip Haigh, “£30 billion plan to transform the rail network in Ireland”, in RAIL, number 991, page 25
  2. Of questionable taste or acceptability; approaching bad taste.

    Your borderline remarks about my aunt’s dress destroyed my evening.

  3. Exhibiting or characteristic of borderline personality disorder.

    She clearly has borderline and narcissistic features and she meets the criteria for a rapid cycling bipolar disorder, as well as for a generalized anxiety disorder. She has a severe binge eating disorder and has gained 65 pounds since[…]

    2003 December 8, Leslie Atkinson, Research Scientist at the Psychiatry Research Unit Susan Goldberg, Susan Goldberg, Attachment Issues in Psychopathology and Intervention, Routledge, →ISBN, page 192
adverbborderline (not comparable)

alternative border-line

  1. not comparableNearly; not entirely but nevertheless to a great extent.

    He is borderline hypoglycemic and needs to monitor his sugar intake.

    1 more example

    I expected him to be super boring but he was actually borderline funny!

nounborderline (countable and uncountable, plural borderlines)

plural borderlines · alternative border-line

  1. countableA boundary or accepted division; a border.

    She lives on the borderline between reality and madness.

    1 more example

    Elbow deep inside the borderline Show me that you love me and that we belong together Shoulder deep within the borderline Relax, turn around and take my hand

    1996, “Stinkfist”, performed by Tool
  2. abbreviationellipsisuncountableEllipsis of borderline personality disorder.

    [...] you should consider it! People with Borderline are especially affected by the unconditional affection parenting a pet can provide.

    2014 December 16, Amber Zufelt, Chasing Butterflies: The Ultimate Guide to Surviving Borderline Personality Disorder, Lulu.com, →ISBN, page 40
    2 more examples

    The four overlapping concepts of borderline were as follows : (1) A residual model […] (2) An affective disorder model, which considered BPD as an affective spectrum illness displaying prominent[…]

    2001 July 23, Howard S. Friedman, The Disorders: Specialty Articles from the Encyclopedia of Mental Health, Gulf Professional Publishing, →ISBN, page 109

    Subsequent conceptualizations of borderline were based on important contributions from psychoanalysts, […] As a result of its inclusion, appearing as “borderline personality disorder,” the construct gained legitimacy[…]

    2011 November 8, Paula K. Lundberg-Love, Kevin L. Nadal, Michele A. Paludi, Women and Mental Disorders [4 volumes], ABC-CLIO, →ISBN, page 155
  3. countableA person who has borderline personality disorder.

    As an example of their affective profile, borderlines are set apart from passive aggressives by having more marked social anxiety […] and greater sensitivity […]

    1995, Eugene E. Levitt, Edward Earl Gotts, The Clinical Application of MMPI Special Scales, page 80
verbborderline (third-person singular simple present borderlines, present participle borderlining, simple past and past participle borderlined)

present singular third person borderlines · participle present borderlining · participle past borderlined · past borderlined · alternative border-line

  1. transitiveTo border, or border on; to be physically close or conceptually akin to.

Synonyms & antonyms

adjectiveof questionable or minimal quality

nouna line that indicates a boundary

Similar

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

Translations

Czech hraniční, hranice
  • hraničnínot clearly on one side or other of a boundary
  • hraniceboundary
Dutch grens, dubieus
  • grensnot clearly on one side or other of a boundary
  • dubieusnot clearly on one side or other of a boundary
  • grensboundary
  • grenslijnboundary
  • scheidingslijnboundary
  • demarcatieboundary
  • demarcatielijnboundary
Esperanto limlinia
  • limlinianot clearly on one side or other of a boundary
Finnish rajoilla oleva, epämääräinen
  • rajoilla olevanot clearly on one side or other of a boundary
  • epämääräinenof questionable taste
  • rimaa hipovaof questionable taste
  • rajaboundary
  • rajaviivaboundary
French à la limite, limite
  • à la limitenot clearly on one side or other of a boundary
  • limitenot clearly on one side or other of a boundary
  • frontièreboundary
German grenzwertig, Grenzlinie
  • grenzwertignot clearly on one side or other of a boundary
  • Grenzlinieboundary
Greek οριακός, οριακά
  • οριακός (oriakós)not clearly on one side or other of a boundary
  • οριακά (oriaká)not entirely but nevertheless to a great extent
Hindi सीमा रेखा
  • सीमा रेखा (sīmā rekhā)not clearly on one side or other of a boundary
Hungarian kétséges, ízléstelen
  • kétségesnot clearly on one side or other of a boundary
  • ízléstelenof questionable taste
  • ízetlenof questionable taste
  • kis híjánnot entirely but nevertheless to a great extent
  • jóformánnot entirely but nevertheless to a great extent
  • határboundary
  • határvonalboundary
  • határesetboundary
Polish pograniczny
  • pogranicznynot clearly on one side or other of a boundary
Portuguese fronteira
  • fronteiraboundary
Spanish borderline, borderline
  • borderlineof questionable taste
  • borderlineexhibiting borderline personality disorder
  • rozarnot entirely but nevertheless to a great extent
  • fronteraboundary
  • línea divisoriaboundary
  • límiteboundary
  • confínboundary
  • borderlineperson who has borderline personality disorder
Cite this entry
APA

borderline. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/borderline

MLA

“borderline.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/borderline. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “borderline,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/borderline.

Source: borderline on Wiktionary, CC BY-SA 4.0.