| hemming and hawing | |
| hesitant(open, uncertain, nervous, doubtful, vague) | |
| impugnable(adjective, delicate, uncertain, unstable, doubtful) | |
| in a quandary(expression, adjective, idiom, uncertain, nervous) | |
| in the middle | |
| irresolute(open, uncertain, nervous, doubtful, vague) | |
| lacking(adjective, uncertain, nervous, doubtful, shaky) | |
| limbic | |
| limitation(noun, top, point, limit, extreme) | |
| limiting | |
| littoral | |
| loaded(adjective, delicate, uncertain, unstable, doubtful) | |
| long shot(expression, uncertain, shaky, unclear, unlikely) | |
| march(edge, border, frontier, trimming, edging) | |
| minimum | |
| mistrustful(adjective, uncertain, nervous, doubtful, shaky) | |
| molding | |
| moulding | |
| negligible | |
| not definite |
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| APA | Smart Define. (2015). borderline thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/borderline/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "borderline thesaurus" https://smartdefine.org/borderline/thesaurus/synonyms (accessed September 21, 2026). |
| Harvard | Smart Define 2015, borderline thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/borderline/thesaurus/synonyms>. |
| MLA | Smart Define. "borderline thesaurus" 13 April 2015. Web. 21 September 2026. <https://smartdefine.org/borderline/thesaurus/synonyms> |