69 entries under expression topic. ×
| heavy duty | |
| huffy irascible(critical, complaining) | |
| ill at ease(idiom, tricky, problematic, embarrassing) | |
| inferior spoiled(unsatisfactory, fruitless, unfulfilling) | |
| is difficult | |
| metaphorically hard | |
| must not | |
| mysterious blank(ambiguous, hidden, unfathomable, incomprehensible) | |
| not cooperative | |
| not smooth | |
| not up to par(adjective, idiom, unsatisfactory, fruitless) | |
| not up to snuff(adjective, idiom, unsatisfactory, fruitless) | |
| off the wall(idiom, irrational, arbitrary, perverse) | |
| out of sorts(adjective, idiom, rude, unpleasant) | |
| out of sorts peevish(idiom, critical, complaining) | |
| plug ugly | |
| pushful man | |
| render difficult(idiom, difficulty) | |
| rough and ready | |
| run one hard(idiom, difficulty) |
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| APA | Smart Define. (2016). difficult thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/difficult/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "difficult thesaurus" https://smartdefine.org/difficult/thesaurus/synonyms (accessed September 21, 2026). |
| Harvard | Smart Define 2016, difficult thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/difficult/thesaurus/synonyms>. |
| MLA | Smart Define. "difficult thesaurus" 24 March 2016. Web. 21 September 2026. <https://smartdefine.org/difficult/thesaurus/synonyms> |