| out-and-out | |
| piercing | |
| pugnacious(adjective, hard, severe, rough, harsh) | |
| punishing | |
| refractory(adjective, hard, severe, rough, harsh) | |
| rigid | |
| ruffianly(adjective, hard, severe, rough, harsh) | |
| splitting | |
| stern | |
| sweeping | |
| taut(adjective, hard, severe, rough, harsh) | |
| terrible(adjective, hard, severe, rough, harsh) | |
| thoroughgoing | |
| unalterable(adjective, hard, severe, rough, harsh) | |
| uncontrollable(adjective, hard, severe, rough, harsh) | |
| unmanageable(adjective, hard, severe, rough, harsh) | |
| unpleasant(adjective, hard, tough, harsh, rude) | |
| unsparing | |
| venomous | |
| developmental |
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| APA | Smart Define. (2015). drastic thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/drastic/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "drastic thesaurus" https://smartdefine.org/drastic/thesaurus/synonyms (accessed September 21, 2026). |
| Harvard | Smart Define 2015, drastic thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/drastic/thesaurus/synonyms>. |
| MLA | Smart Define. "drastic thesaurus" 14 April 2015. Web. 21 September 2026. <https://smartdefine.org/drastic/thesaurus/synonyms> |