confidence
Americannoun
-
confidence
plural
-
full trust; belief in the powers, trustworthiness, or reliability of a person or thing.
We have every confidence in their ability to succeed.
- Synonyms:
- dependence, reliance, faith
- Antonyms:
- mistrust
-
belief in oneself and one's powers or abilities; self-confidence; self-reliance; assurance.
His lack of confidence defeated him.
-
certitude; assurance.
He described the situation with such confidence that the audience believed him completely.
-
a secret that is confided or imparted trustfully.
The friends exchanged many confidences over the years.
-
see vote of confidence.
-
presumption; impudence.
Her disdainful look crushed the confidence of the brash young man.
-
Archaic. something that gives confidence; ground of trust.
idioms
noun
-
a feeling of trust in a person or thing
I have confidence in his abilities
-
belief in one's own abilities; self-assurance
-
trust or a trustful relationship
take me into your confidence
-
something confided or entrusted; secret
-
as a secret
Usage
What does confidence mean? Confidence is full trust or belief in the reliability of someone or something, The fans had confidence that their team would win. Confidence is also a belief in one’s self, also called self-confidence. If you have confidence in yourself that you can earn a spot on the basketball team, you believe you can get on the team. Confidence is also a certitude about something, as in When you walk with confidence, people pay attention to you. A confidence is also a secret that you share with someone. To take someone into your confidence is to share a secret with them, trusting that they won’t share it with anyone else. Example: He showed confidence during the interview so I think he is the better candidate for the position.
Synonym Usage
See trust. Confidence, assurance both imply a faith in oneself. Confidence may imply trust in oneself or arrogant self-conceit. Assurance implies even more sureness of oneself; this may be shown as undisturbed calm or as offensive boastfulness.
Other Word Forms
Derived Forms
Inflected Forms
Nouns
Etymology
Origin of confidence
First recorded in 1400–50; late Middle English, from Middle French, from Latin confīdentia; see confide, -ence
Explanation
The noun confidence means "a feeling of trust and firm belief in yourself or others." A person who walks into a room, smiling at everyone and not at all nervous about the speech she's about to give? She has confidence. Confidence comes from the Middle French word of the same spelling, which means "firmly trusting, bold." You can have confidence in yourself, another person, your country, even your rain boots — what you put your confidence in will not let you down. Confidence can also mean "in secret," like when your neighbor tells you in confidence that he and his family are thinking of moving away — he doesn't want others to know.
Vocabulary lists containing confidence
"Rikki-Tikki-Tavi" by Rudyard Kipling
Looking to grow your vocabulary? Check out this interactive, curated word list from our team of English language specialists at Vocabulary.com – one of over 17,000 lists we've built to help learners worldwide!
Franklin D. Roosevelt, "A Date That Will Live In Infamy" (1941)
Interested in learning more words like this one? Our team at Vocabulary.com has got you covered! You can review flashcards, quiz yourself, practice spelling, and more – and it's all completely free to use!
"In the Spotlight," Vocabulary from the informational text
Want to remember this word for good? Start your learning journey today with our library of interactive, themed word lists built by the experts at Vocabulary.com – we'll help you make the most of your study time!
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Tapper reminded Cassidy that the senator previously called for someone to challenge “crazy stupid things” that undermine confidence in immunization and asked whether Trump’s statements qualified.
From Salon ● Aug. 16, 2026
"Even gradual changes can affect confidence and independence, and people may notice they tire more quickly or feel less steady, especially on uneven ground."
From Science Daily ● Aug. 16, 2026
She says it has helped her grow in confidence, gain real-life experience while studying, and get mentoring.
From BBC ● Aug. 15, 2026
Benaissa said the mass crossing by such people was a "deeper sign of a crisis of confidence in the future" and in "the ability of institutions to guarantee adequate social protection and equal opportunity".
From Barron's ● Aug. 15, 2026
Dad strides over to the agents, his usual confidence back, and shoves his cell phone into the hands of the taller one.
From "South of Somewhere" by Kalena Miller
![]()
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.