Definition

1. Adjective:

   • Based on or involving a hypothesis; supposed but not necessarily real or true: Used to describe something that is imagined or proposed for the sake of argument, discussion, or investigation, rather than being an established fact.
   • Existing only as an idea or concept: Pertaining to a situation, entity, or condition that is possible but not yet proven or confirmed.

2. Noun:

   • A hypothetical idea, statement, or scenario: A proposition or situation that is considered as a possibility or for the purpose of reasoning, often to explore its consequences.

Usage Examples

• Adjective:
  • The scientist presented a hypothetical model to explain the phenomenon. (The model was proposed for discussion, not yet proven.)
  • Let's consider a hypothetical case where we have unlimited resources. (We are imagining a scenario for discussion.)
• Noun:
  • He posed an interesting hypothetical about the future of artificial intelligence. (He proposed a speculative idea for consideration.)
  • We need to plan for various hypotheticals, not just the most likely outcome. (We need to consider different possible scenarios.)

Advanced Usage

• "Purely hypothetical": Used to emphasize that a statement or question is speculative and not based on current reality.
  • My question is purely hypothetical; I'm not suggesting this will happen.
• "Hypothetical question": A question based on an imagined scenario rather than facts.
  • It's a classic hypothetical question: "What would you do if you won the lottery?"

Variants and Related Words

• Hypothesis (n): A proposed explanation made on the basis of limited evidence as a starting point for further investigation.
  • She formulated a hypothesis to test in her experiment.
• Hypothesize (v): To put forward as a hypothesis; to suppose.
  • Researchers hypothesize that the treatment will be effective.

Synonyms

• Theoretical: Concerned with or involving the theory of a subject or area of study rather than its practical application.
• Speculative: Engaged in, expressing, or based on conjecture rather than knowledge.
• Conjectural: Based on incomplete information; guesswork.
• Suppositional: Based on assumption rather than fact.

Antonyms

• Actual: Existing in fact; real.
• Confirmed: Established as true or definite.
• Proven: Demonstrated to be true or effective.

Related Phrases and Idioms

• "For the sake of argument": Used to introduce a hypothetical situation to discuss its implications.
  • For the sake of argument, let's assume your hypothetical is correct. What then?
• "In theory" vs. "In practice": This common contrast often involves a hypothetical ("in theory") being compared to reality ("in practice").
  • In theory, the plan is flawless, but in practice, we face many hypothetical challenges we didn't foresee.

Adjective

1. based primarily on surmise rather than adequate evidence
   • theories about the extinction of dinosaurs are still highly conjectural
   • the supposed reason for his absence
   • suppositious reconstructions of dead languages
   • hypothetical situation

Noun

1. a hypothetical possibility, circumstance, statement, proposal, situation, etc.
   • consider the following, just as a hypothetical