YOUR VOCABULARY, ONE WORD AT A TIME

infallible

Adjective

IPA /ɪnˈfæləbl/

Understand it. Say it. Use it.

UNDERSTAND THE WORD

Meaning in plain English

Always correct and never making a mistake in judgement or advice.

SAY IT ALOUD

Pronunciation

infallible/ɪnˈfæləbl/

PICTURE THE IDEA

See the meaning

Compare

People sometimes make errors
Never wrong, ever

Infallible means never mistaken; ordinary expertise does not guarantee this.

SEE IT IN EVERYDAY ENGLISH

Examples in context

Read the examples aloud. Notice how the word fits the sentence, then think of a situation of your own.

Even the most experienced cook is not infallible.
The tutor reminded us that no source of information is infallible.

MAKE IT STICK

Quick word quiz

Try the question without looking back, then write a sentence of your own. You can retry as often as you like.

Can you recall the word?

Complete the example using the word from this lesson.

Even the most experienced cook is not ________.

Show the answer

infallible — Always correct and never making a mistake in judgement or advice.

Try your own sentence (optional)

Make it yours

Write one sentence using “infallible” about your own life.

Your sentence (optional)

Check your sentence

Does your sentence match this meaning?

Always correct and never making a mistake in judgement or advice.

Compare: Even the most experienced cook is not infallible.

Check the spelling and how the word fits the sentence. Your example can be different.

Self-review only. Your sentence is not automatically marked, saved or submitted.

This quiz is for practice. To save lesson completion on this device, complete the checks in the app.

Word origin

From French or late Latin infallibilis, ultimately related to fallere, meaning to deceive.

Did you know?

Not infallible is often used to remind people that mistakes are possible.

Explore related words

Open a word’s lesson when available, or explore entries that use the related term.

Make the word your own

Say the word aloud and read an example sentence.
Write a new sentence about something familiar to you.
Cover the meaning and try explaining the word in your own words.

Continue with the app’s practice check, then try a sentence of your own to mark this word complete.

Practise this word in the app

Completion and saved words stay in this browser on this device.