adj · 4 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
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Received-Pronunciation:/ˌɒptɪˈmɪstɪk/
Southern-England:Recorded audio is listed in the source snapshot.
Canada, US:/ˌɑptɪˈmɪstɪk/
Canada, US:/ˌɑptəˈmɪstɪk/
rhymes with -ɪstɪk
CMU ARPABET:AA2 P T AH0 M IH1 S T IH0 K
Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
1
adj
Meaning 1
Expecting the best in all possible ways.
Definition source: English Wiktionary via Wiktextract
Examples
in an optimistic mood
optimistic plans
took an optimistic view
Meaning relationships
Synonyms: upbeat, rosy
Antonyms: pessimistic
2
adj
Meaning 2
Allowing other processes to perform transactions on the same data at the same time, and checking for conflicts only when changes need to be written back.
Definition source: English Wiktionary via Wiktextract
expecting the best in this best of all possible worlds
Definition source: Princeton WordNet 3.0
Examples
in an optimistic mood
optimistic plans
took an optimistic view
Meaning relationships
Synonyms: none provided
Antonyms: pessimistic
4
adjective satellite
Meaning 4
expecting the best
Definition source: Princeton WordNet 3.0
Examples
an affirmative outlook
Meaning relationships
Synonyms: affirmative
Antonyms: none provided
History
Etymology
Etymology tree Proto-Indo-European *h1ep-der. Proto-Indo-European *h1épsder. Proto-Indo-European *h1epi Proto-Indo-European *-tm̥mos ? Latin optimus Proto-Indo-European *-id- Proto-Indo-European *-yéti Proto-Indo-European *-idyéti Proto-Hellenic *-íďďō Ancient Greek -ῐ́ζω (-ĭ́zō) Proto-Indo-European *-mos Proto-Indo-European *-mós Ancient Greek -μός (-mós) Ancient Greek -ῐσμός (-ĭsmós)der. Latin -ismusbor. French -isme French optim(isme) ▲ Ancient Greek -ῐ́ζω (-ĭ́zō) Proto-Hellenic *-tās Ancient Greek -τής (-tḗs) Ancient Greek -ῐστής (-ĭstḗs)bor. Latin -istabor. French -iste French optimistebor. English optimist Proto-Indo-European *-ikos Proto-Italic *-ikos Latin -icuslbor. Old French -iquebor. Middle English -ik English -ic English optimistic From optimist + -ic.
Across languages
Translations
51 source translations are retained for this English entry.
Arabic:
مُتَفَائِل
(mutafāʔil)
— expecting a good outcome
Armenian:
լավատես
(lavates)
— expecting a good outcome
Armenian:
լավատեսական
(lavatesakan)
— expecting a good outcome
Belarusian:
аптымісты́чны
(aptymistýčny)
— expecting a good outcome
Bulgarian:
оптимисти́чен
(optimistíčen)
— expecting a good outcome
Catalan:
optimista
— expecting a good outcome
Chinese Mandarin:
樂觀的 /乐观的
(lèguān de)
— expecting a good outcome
Czech:
optimistický
— expecting a good outcome
Danish:
optimistisk
— expecting a good outcome
Dutch:
optimistisch
— expecting a good outcome
Esperanto:
optimisma
— expecting a good outcome
Finnish:
optimistinen
— expecting a good outcome
French:
optimiste
— expecting a good outcome
Galician:
optimista
— expecting a good outcome
Georgian:
ოპტიმისტური
(oṗṭimisṭuri)
— expecting a good outcome
German:
optimistisch
— expecting a good outcome
Greek:
αισιόδοξος
(aisiódoxos)
— expecting a good outcome
Hawaiian:
hauʻoli
— expecting a good outcome
Hebrew:
אוֹפְּטִימִי
— expecting a good outcome
Hindi:
आशावादी
(āśāvādī)
— expecting a good outcome
Hungarian:
optimista
— expecting a good outcome
Hungarian:
derűlátó
— expecting a good outcome
Italian:
ottimista
— expecting a good outcome
Japanese:
楽観的
(rakkanteki)
— expecting a good outcome
Korean:
낙천적인
(nakcheonjeogin)
— expecting a good outcome
Korean:
낙관적인
(nakgwanjeogin)
— expecting a good outcome
Low German:
toversichtlich
— expecting a good outcome
Low German:
optimist'sch
— expecting a good outcome
Māori:
ngākau rorotu
— expecting a good outcome
Marathi:
आशावादी
(āśāvādī)
— expecting a good outcome
Norwegian:
optimistisk
— expecting a good outcome
Persian:
خوش بین
— expecting a good outcome
Persian:
خوش بینانه
— expecting a good outcome
Polish:
optymistyczny
— expecting a good outcome
Portuguese:
otimista
— expecting a good outcome
Romanian:
optimist
— expecting a good outcome
Russian:
оптимисти́ческий
(optimistíčeskij)
— expecting a good outcome
Russian:
оптимисти́чный
(optimistíčnyj)
— expecting a good outcome
Serbo-Croatian:
оптимистичан
— expecting a good outcome
Serbo-Croatian:
optimističan
— expecting a good outcome
Slovak:
optimistický
— expecting a good outcome
Spanish:
optimista
— expecting a good outcome
Swedish:
optimistisk
— expecting a good outcome
Thai:
มองโลกในแง่ดี
— expecting a good outcome
Turkish:
iyimser
— expecting a good outcome
Ukrainian:
оптимісти́чний
(optymistýčnyj)
— expecting a good outcome
Vietnamese:
lạc quan
— expecting a good outcome
Volapük:
fredimik
— expecting a good outcome
Yiddish:
אָפּטימיסטיש
(optimistish)
— expecting a good outcome