noun · 5 senses · updated from the 2026-07-25 local source snapshot
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
Pronunciation
Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.
General-American:/ˈɑptɪmɪzəm/
Received-Pronunciation:/ˈɒptɪmɪzəm/
US:Recorded audio is listed in the source snapshot.
CMU ARPABET:AA1 P T AH0 M IH2 Z AH0 M
Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
1
noun
Meaning 1
a tendency to expect the best, or at least, a favourable outcome
Definition source: English Wiktionary via Wiktextract
Usage: uncountable, usually
Examples
I love her youth, her beauty and above all her optimism that everything will turn out fine.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
2
noun
Meaning 2
the doctrine that this world is the best of all possible worlds
Definition source: English Wiktionary via Wiktextract
Usage: uncountable, usually
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
3
noun
Meaning 3
the belief that good will eventually triumph over evil
Definition source: English Wiktionary via Wiktextract
Usage: uncountable, usually
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
4
noun
Meaning 4
a general disposition to expect the best in all things
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: pessimism
Broader terms: disposition, temperament
5
noun
Meaning 5
the optimistic feeling that all is going to turn out well
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: pessimism
Broader terms: hope
Narrower terms: sanguinity, sanguineness
History
Etymology
From French optimisme, equivalent to Latin optimus + -ism.
Across languages
Translations
72 source translations are retained for this English entry.
Arabic:
تَفَاؤُل
(tafāʔul)
— a tendency to expect the best
Armenian:
լավատեսություն
(lavatesutʻyun)
— a tendency to expect the best
Belarusian:
аптымі́зм
(aptymízm)
— a tendency to expect the best
Bulgarian:
оптими́зъм
(optimízǎm)
— a tendency to expect the best
Catalan:
optimisme
— a tendency to expect the best
Chinese Mandarin:
樂觀主義 /乐观主义
(lèguānzhǔyì)
— a tendency to expect the best
Czech:
optimismus
— a tendency to expect the best
Dutch:
optimisme
— a tendency to expect the best
Finnish:
optimismi
— a tendency to expect the best
French:
optimisme
— a tendency to expect the best
Galician:
optimismo
— a tendency to expect the best
Georgian:
ოპტიმიზმი
(oṗṭimizmi)
— a tendency to expect the best
German:
Optimismus
— a tendency to expect the best
German:
Zuversicht
— a tendency to expect the best
Greek:
αισιοδοξία
(aisiodoxía)
— a tendency to expect the best
Hebrew:
אופטימיות
(optímiut)
— a tendency to expect the best
Hindi:
आशावाद
(āśāvād)
— a tendency to expect the best
Hungarian:
optimizmus
— a tendency to expect the best
Hungarian:
derűlátás
— a tendency to expect the best
Italian:
ottimismo
— a tendency to expect the best
Japanese:
楽観主義
(rakkanshugi)
— a tendency to expect the best
Korean:
낙천주의
(nakcheonjuui)
— a tendency to expect the best
Low German:
Toversicht
— a tendency to expect the best
Low German:
Optimismus
— a tendency to expect the best
Māori:
ngākau rorotu
— a tendency to expect the best
Marathi:
आशावाद
(āśāvād)
— a tendency to expect the best
Norwegian:
optimisme
— a tendency to expect the best
Persian:
خوشبینی
(xoš-bini)
— a tendency to expect the best
Polish:
optymizm
— a tendency to expect the best
Portuguese:
otimismo
— a tendency to expect the best
Romanian:
optimism
— a tendency to expect the best
Russian:
оптими́зм
(optimízm)
— a tendency to expect the best
Serbo-Croatian:
оптимѝзам
— a tendency to expect the best
Serbo-Croatian:
optimìzam
— a tendency to expect the best
Spanish:
optimismo
— a tendency to expect the best
Swedish:
optimism
— a tendency to expect the best
Turkish:
optimizm
— a tendency to expect the best
Turkish:
iyimserlik
— a tendency to expect the best
Ukrainian:
оптимі́зм
(optymízm)
— a tendency to expect the best
Vietnamese:
sự lạc quan
— a tendency to expect the best
Volapük:
fredim
— a tendency to expect the best
Arabic:
تَفَاؤُل
(tafāʔul)
— the doctrine that this world is the best of all possible worlds
Catalan:
optimisme
— the doctrine that this world is the best of all possible worlds
Chinese Mandarin:
樂觀主義 /乐观主义
(lèguānzhǔyì)
— the doctrine that this world is the best of all possible worlds
Finnish:
optimismi
— the doctrine that this world is the best of all possible worlds
French:
optimisme
— the doctrine that this world is the best of all possible worlds
Galician:
optimismo
— the doctrine that this world is the best of all possible worlds
Greek:
αισιοδοξία
(aisiodoxía)
— the doctrine that this world is the best of all possible worlds
Japanese:
楽観主義
(rakkanshugi)
— the doctrine that this world is the best of all possible worlds
Norwegian:
optimisme
— the doctrine that this world is the best of all possible worlds
Portuguese:
otimismo
— the doctrine that this world is the best of all possible worlds
Russian:
оптими́зм
(optimízm)
— the doctrine that this world is the best of all possible worlds
Serbo-Croatian:
оптимѝзам
— the doctrine that this world is the best of all possible worlds
Serbo-Croatian:
optimìzam
— the doctrine that this world is the best of all possible worlds
Thai:
สุทรรศนนิยม
— the doctrine that this world is the best of all possible worlds
Thai:
สุนิยม
— the doctrine that this world is the best of all possible worlds
Turkish:
optimizm
— the doctrine that this world is the best of all possible worlds
Turkish:
iyimserlik
— the doctrine that this world is the best of all possible worlds
Volapük:
fredim
— the doctrine that this world is the best of all possible worlds
Arabic:
تَفَاؤُل
(tafāʔul)
— the belief that good will eventually triumph over evil
Catalan:
optimisme
— the belief that good will eventually triumph over evil
Chinese Mandarin:
樂觀主義 /乐观主义
(lèguānzhǔyì)
— the belief that good will eventually triumph over evil
Finnish:
optimismi
— the belief that good will eventually triumph over evil
French:
optimisme
— the belief that good will eventually triumph over evil
Greek:
αισιοδοξία
(aisiodoxía)
— the belief that good will eventually triumph over evil
Japanese:
楽観主義
(rakkanshugi)
— the belief that good will eventually triumph over evil
Norwegian:
optimisme
— the belief that good will eventually triumph over evil
Portuguese:
otimismo
— the belief that good will eventually triumph over evil
Russian:
оптими́зм
(optimízm)
— the belief that good will eventually triumph over evil
Serbo-Croatian:
оптимѝзам
— the belief that good will eventually triumph over evil
Serbo-Croatian:
optimìzam
— the belief that good will eventually triumph over evil
Volapük:
fredim
— the belief that good will eventually triumph over evil