Definition

An idea or belief that something is true, often without proof or evidence.

Example

Her supposition about the weather was based on the dark clouds in the sky.

Conversation

I have a supposition that the meeting will be rescheduled.

Really? I hadn't heard anything about that yet.

Yeah, I just think they might need more time to prepare.

That makes sense; better to be ready than rush it.

Synonyms & Antonyms

Root Explanation

Supposition → It is formed from "supponere" (meaning to place under) and the suffix "-tion" (indicating the action or process). The word refers to the act of placing an idea or assumption under consideration.

Memory Tip

Think of placing an idea 'under' ('supponere') for consideration — that's what supposition means.

Visually Confused Words