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Definitions

borderline

[bawr-der-lahyn] / ˈbɔr dərˌlaɪn /
ADJECTIVE
inexact
Synonyms
STRONGEST
marginal
STRONG
open
WEAK
ambiguous ambivalent doubtful dubitable equivocal indecisive indefinite indeterminate problematic uncertain unclassifiable unclear undecided unsettled
Antonyms
WEAK
certain definite exact sure

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

A definite spot-kick in Europe, borderline for the Premier League.

From BBC • Apr. 29, 2026

A former teammate described him as "borderline genius" and "super stable."

From Barron's • Apr. 26, 2026

It sounds borderline insane to consider that the only available team in America’s second-largest market might not be worth as much as the team that just sold in America’s 30th-largest market.

From Los Angeles Times • Apr. 17, 2026

It’s a communication style or, more accurately, a manipulation tactic used by people who have a borderline personality disorder.

From MarketWatch • Mar. 3, 2026

Sigils, as I recall from some dark comic book series, are symbols of medieval magic from back in the day when so few people were literate that literacy itself was seen as borderline magical.

From "Challenger Deep" by Neal Shusterman