- Definitions|1
- Thesaurus|411
- Abbreviations|0
| great bellied | |
| habitual(fixed, persistent, hardened, lasting, confirmed) | |
| immortal | |
| immutable(calm, strong, solid, steady, substantial) | |
| impressed | |
| imprinted | |
| in for the long haul(expression, idiom, permanent, long-term, lifelong) | |
| inbuilt | |
| incessant(permanent, long-term, lifelong) | |
| incorrigible | |
| inculcated | |
| incurable(fixed, persistent, continuous, hardened, lasting) | |
| indelible(fixed, permanent, long-term, lifelong, deep-seated) | |
| indelibly impressed | |
| indwelling | |
| inexhaustible(permanent, long-term, lifelong) | |
| inexpungible(permanent, long-term, lifelong) | |
| infixed | |
| ingrown | |
| intense |
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| APA | Smart Define. (2016). deep-rooted thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/deep-rooted/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "deep-rooted thesaurus" https://smartdefine.org/deep-rooted/thesaurus/synonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2016, deep-rooted thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/deep-rooted/thesaurus/synonyms>. |
| MLA | Smart Define. "deep-rooted thesaurus" 26 February 2016. Web. 26 September 2026. <https://smartdefine.org/deep-rooted/thesaurus/synonyms> |