Borderline
Borderline adjective - Located at or near a border.
Questionable is a synonym for borderline in certain topic. In some cases you can use "Questionable" instead an adjective "Borderline".
Nearby Words: border, borderland
Questionable
Questionable adjective - Giving good reason for being doubted, questioned, or challenged.
Borderline is a synonym for questionable in certain topic. You can use "Borderline" instead an adjective "Questionable", if it concerns topics such as unverified.
Mutual synonyms
Related pairs
- dubious and borderline
- dubious and questionable
- unsettled and borderline
- unsettled and questionable
- unclear and borderline
- unclear and questionable
- ambiguous and borderline
- ambiguous and questionable
- doubtful and borderline
- doubtful and questionable
- suspicious and borderline
- suspicious and questionable
- undecided and borderline
- undecided and questionable
Both words in one sentence
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A borderline example occurs in one Questionable Content strip, where an extremely drunk Amir mutters that he's "too fuck to drunk" before falling asleep.
Source: Spoonerism -
When she convinces others she isn't, people usually start seeing their relationship in a totally different light, which she finds worse Psycho Lesbian — Sousou is a borderline case, since she does get better, but some of her actions in the first season are ... rather questionable.
Source: Visual Novel / KoihimeMusou - Is Jack Bauer a Tragic Hero who always fights on for the greater good and still has a clear conscience in spite of the questionable tactics he employs, or a borderline Ax-Crazy loose cannon Sociopath Hero who is just as bad as the terrorists he fights against?
Cite this Source
Questionable and Borderline. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/borderline/questionable
Borderline & Questionable. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/borderline/questionable>.
Questionable or Borderline. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/borderline/questionable.
Google Ngram Viewer shows how "borderline" and "questionable" have occurred on timeline