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No-Brainer

Podcast 1 · Introduction

No-Brainer /ˌnəʊˈbreɪnə/ · noun

A short documentary narration — meaning, origin, and how the word is used.

In this course, a no-brainer is a decision so easy it requires no thought. The related entry for no chance gives a related word, and the Cambridge definition of no-brainer and the Merriam-Webster entry for no-brainer give the main sense. For more background, see the encyclopaedia article on no-brainer.

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Podcast 2 · Daily Use

In Conversation

Two British speakers using "no-brainer" naturally in everyday talk.

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Podcast 3 · Prompt Engineering

Prompting with "no-brainer"

An instructor and developer explore real, copy-ready AI prompts built around the word.

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Transcript: “No brainer” vocabulary micro-course

Read along with the three podcasts, or open the full dictionary entry for No brainer for the definition, Arabic meaning, synonyms and example sentences.

Podcast 1 — Introduction & meaning

Narrator: Today's word is "No-Brainer" — noun, pronounced /ˌnəʊˈbreɪnə/, with the stress on "bra".

Narrator: A no-brainer is a decision or choice so easy or obvious that it requires no thought.

Narrator: In plain English, a no-brainer is an obvious choice — like accepting a free gift is a no-brainer.

Narrator: It comes from the idea that no brain is needed, because the choice is obvious.

Narrator: "A no-brainer decision" describes a choice so easy it requires no thought.

Narrator: It differs from obvious because no-brainer is informal, whereas obvious is general.

Narrator: "It's a no-brainer" is a phrase meaning the choice is so easy it's obvious.

Narrator: Everyday speech, decision-making, business, informality and description all rely on the phrase no-brainer.

Narrator: So remember: a no-brainer is an easy choice, from no brain needed.

Read podcasts 2 and 3

Podcast 2 — In conversation

Speaker A: What is a no-brainer?

Speaker B: An easy choice! NO-BRAINER comes from the idea that no brain is needed, so it means a decision so obvious it requires no thought.

Speaker A: So accepting a free gift is a no-brainer?

Speaker B: Yes — it's obvious!

Speaker A: Example sentences?

Speaker B: "A no-brainer decision"; "it's a no-brainer"; "a total no-brainer" — choice, phrase and emphasis.

Speaker A: Common mistakes?

Speaker B: Don't write no brainer as two words, because the correct spelling is no-brainer, hyphenated.

Speaker A: Close relatives?

Speaker B: 'Obvious' the general cousin, 'easy choice' the plain twin, 'given' the certain alternative. The phrase keeps its simple charm!

Podcast 3 — Prompt engineering

Speaker B: Let's use "no-brainer" in AI prompts — useful for business apps and decision tools.

Speaker A: So a prompt could frame business?

Speaker B: Right. For a business app, you'd write:

Prompt: Write a short guide to no-brainer decisions, naming two examples.

Speaker A: How about a decision tool?

Speaker B: Ask the model to advise:

Prompt: Draft a guide to spotting no-brainers, naming two signs.

Speaker A: Could it help with a writing bot?

Speaker B: Yes, you can frame dialogue:

Prompt: Summarise in two sentences how to use no-brainer, naming one example.

Speaker A: One more?

Speaker B: For an informal chatbot, try this:

Prompt: Write a short note on no-brainer origins, naming one theory.