| italiano | ita-000 |
| ottimismo | |
| Afrikaans | afr-000 | optimisme |
| toskërishte | als-000 | optimizëm |
| العربية | arb-000 | تفاؤل |
| العربية | arb-000 | تَفَاؤُل |
| luenga aragonesa | arg-000 | optimismo |
| asturianu | ast-000 | optimismu |
| беларуская | bel-000 | аптымізм |
| bosanski | bos-000 | optimizam |
| brezhoneg | bre-000 | gwellwelerezh |
| català | cat-000 | optimisme |
| čeština | ces-000 | optimismus |
| 普通话 | cmn-000 | 乐观主义 |
| 國語 | cmn-001 | 樂觀主義 |
| Cymraeg | cym-000 | optimistiaeth |
| dansk | dan-000 | optimisme |
| Deutsch | deu-000 | Optimismus |
| Deutsch | deu-000 | Zuversicht |
| eesti | ekk-000 | optimism |
| ελληνικά | ell-000 | αισιοδοξία |
| ελληνικά | ell-000 | οπτιμισμός |
| English | eng-000 | chipperness |
| English | eng-000 | optimism |
| English | eng-000 | positivism |
| Esperanto | epo-000 | optimismo |
| euskara | eus-000 | baikortasun |
| euskara | eus-000 | optimismo |
| suomi | fin-000 | optimismi |
| suomi | fin-000 | optimistisuus |
| français | fra-000 | optimisme |
| galego | glg-000 | optimismo |
| ગુજરાતી | guj-000 | આશાવાદ |
| Srpskohrvatski | hbs-001 | optimizam |
| Srpskohrvatski | hbs-001 | optimìzam |
| Srpskohrvatski | hbs-001 | оптимизам |
| עברית | heb-000 | אופטימיות |
| हिन्दी | hin-000 | आशावाद |
| hiMxI | hin-004 | ASAvAxa |
| hrvatski | hrv-000 | optimizam |
| hrvatski | hrv-000 | optimìzam |
| magyar | hun-000 | derûlátás |
| magyar | hun-000 | derűlátás |
| magyar | hun-000 | optimizmus |
| արևելահայերեն | hye-000 | օպտիմիզմ |
| Ido | ido-000 | optimismo |
| interlingua | ina-000 | optimismo |
| bahasa Indonesia | ind-000 | optimisme |
| íslenska | isl-000 | bjartsýni |
| 日本語 | jpn-000 | rakuten |
| 日本語 | jpn-000 | らくてん |
| 日本語 | jpn-000 | オプチミズム |
| 日本語 | jpn-000 | オプティミズム |
| 日本語 | jpn-000 | 楽天 |
| 日本語 | jpn-000 | 楽天主義 |
| 日本語 | jpn-000 | 楽観 |
| 日本語 | jpn-000 | 楽観主義 |
| Nihongo | jpn-001 | opuchimizumu |
| Nihongo | jpn-001 | rakkan |
| Nihongo | jpn-001 | rakuten |
| Nihongo | jpn-001 | rakutenshugi |
| ქართული | kat-000 | ოპტიმიზმი |
| қазақ | kaz-000 | оптимизм |
| 한국어 | kor-000 | 낙천가 |
| 한국어 | kor-000 | 낙천주의 |
| lietuvių | lit-000 | optimizmas |
| latviešu | lvs-000 | optimisms |
| македонски | mkd-000 | оптимизам |
| Nederlands | nld-000 | optimisme |
| bokmål | nob-000 | optimisme |
| occitan | oci-000 | optimisme |
| فارسی | pes-000 | نیک بینی |
| valdugèis | pms-002 | utimìsm |
| polski | pol-000 | optymizm |
| português | por-000 | optimismo |
| português | por-000 | otimismo |
| română | ron-000 | optimism |
| русский | rus-000 | оптими́зм |
| русский | rus-000 | оптимизм |
| lingua siciliana | scn-000 | ottimisimu |
| slovenčina | slk-000 | optimizmus |
| slovenščina | slv-000 | optimizem |
| español | spa-000 | optimismo |
| српски | srp-000 | оптимизам |
| srpski | srp-001 | optimizam |
| svenska | swe-000 | optimism |
| ภาษาไทย | tha-000 | การมองโลกในแง่ดี |
| ภาษาไทย | tha-000 | การมองในแง่ดี |
| ภาษาไทย | tha-000 | ลัทธิความเบิกบานใจ |
| Türkçe | tur-000 | iyimserlik |
| Türkçe | tur-000 | optimizm |
| українська | ukr-000 | оптимізм |
| tiếng Việt | vie-000 | tính lạc quan |
| Volapük | vol-000 | fredim |
| ייִדיש | ydd-000 | אָפּטימיזם |
| Bahasa Malaysia | zsm-000 | optimisme |