- Definitions|2
- Thesaurus|240
- Abbreviations|0
| fly-by-night(nervous, insecure, unsure) | |
| foggy | |
| foreign | |
| foretelling | |
| fuliginous | |
| fuzzy | |
| hard | |
| hazy | |
| hesitant(uncertain, nervous, worried, insecure, unsure) | |
| iffy(nervous, insecure, unsure) | |
| impassable | |
| impermeable | |
| impervious | |
| in a quandary(expression, idiom, nervous, insecure, unsure) | |
| inconclusive | |
| indecisive(nervous, insecure, unsure) | |
| indiscernible(solid, dense, unfathomable, unintelligible, impassable) | |
| inviolable | |
| irresolute(nervous, insecure, unsure) | |
| lacking(nervous, insecure, unsure) |
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| APA | Smart Define. (2013). delphic thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/delphic/thesaurus/synonyms |
| Chicago | Smart Define. 2013. "delphic thesaurus" https://smartdefine.org/delphic/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2013, delphic thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/delphic/thesaurus/synonyms>. |
| MLA | Smart Define. "delphic thesaurus" 28 June 2013. Web. 25 September 2026. <https://smartdefine.org/delphic/thesaurus/synonyms> |