63 entries under idea topic. ×
| guesstimate(noun, feeling, belief, guess) | |
| imagination(noun, fancy, view, thought) | |
| postulation(noun, feeling, belief, suggestion) | |
| rough guess(expression, idiom, belief, guess) | |
| suspicion(noun, concept, feeling, understanding, philosophy) | |
| view(noun, feeling, attitude, review) | |
| fancy(noun, concept, feeling, understanding, view) | |
| notion(noun, concept, feeling, understanding, philosophy) | |
| possibility(noun, belief, uncertainty, guess) | |
| postulate(noun, concept, philosophy, view, attitude) | |
| sneaking suspicion(noun, expression, idiom, belief) | |
| suppose(understanding, system, belief, model) | |
| condition(belief, suggestion, guess, theory) | |
| delusion(noun, fancy, impression, vision) | |
| hallucination(noun, fancy, impression, vision) | |
| illusion(noun, fancy, impression, vision) | |
| image(noun, understanding, fancy, grasp, command) | |
| impression(noun, concept, understanding, philosophy, plan) | |
| premise(noun, understanding, system, belief) | |
| presupposition(noun, view, attitude, belief) |
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| APA | Smart Define. (2016). speculation thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/speculation/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "speculation thesaurus" https://smartdefine.org/speculation/thesaurus/synonyms (accessed September 21, 2026). |
| Harvard | Smart Define 2016, speculation thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/speculation/thesaurus/synonyms>. |
| MLA | Smart Define. "speculation thesaurus" 1 April 2016. Web. 21 September 2026. <https://smartdefine.org/speculation/thesaurus/synonyms> |