- Arabic: مُفَاجِئ m (mufājiʔ)
- Armenian: անսպասելի (hy) (anspaseli), անակնկալ (hy) (anaknkal)
- Asturian: inesperáu
- Azerbaijani: gözlənilməz (az)
- Belarusian: нечака́ны (nječakány), неспадзява́ны (njespadzjavány), рапто́ўны (raptóŭny) (sudden)
- Bulgarian: неоча́кван (bg) (neočákvan)
- Catalan: inesperat
- Chinese:
- Mandarin: 意外的 (zh) (yìwài de)
- Czech: nečekaný (cs), neočekávaný
- Danish: uventet
- Dutch: onverwacht (nl)
- Esperanto: neatendita
- Finnish: odottamaton (fi)
- French: inattendu (fr), imprévu (fr), inopiné (fr)
- Galician: inesperado
- German: unerwartet (de)
- Greek: αναπάντεχος (el) (anapántechos), απροσδόκητος (el) (aprosdókitos), απρόοπτος (el) (apróoptos)
- Hungarian: váratlan (hu)
- Icelandic: óvæntur
- Italian: inaspettato (it), insperato (it), inatteso (it), improvviso (it)
- Japanese: 予想外の (ja) (yosōgai no), 想定外の (ja) (sōteigai no), 意外な (ja) (igai na)
- Latin: subitus, repens, necopīnātus
- Luxembourgish: onerwaart
- Macedonian: неочекуван (neočekuvan)
- Malayalam: അപ്രതീക്ഷിതം (ml) (apratīkṣitaṁ)
- Manx: neuyerkit
- Maori: matawhawhati, whakaohorere, whawhati tata
- Norwegian:
- Bokmål: uventet, uventa
- Nynorsk: uventa
- Polish: nieoczekiwany (pl)
- Portuguese: inesperado (pt)
- Romanian: neașteptat (ro), neprevăzut (ro), neanticipat
- Russian: неожи́данный (ru) (neožídannyj), нежда́нный (ru) (neždánnyj)
- Serbo-Croatian:
- Cyrillic: неочѐкӣва̄н
- Roman: neočèkīvān (sh)
- Slovak: nečakaný, neočakávaný
- Slovene: nepričakovan
- Spanish: inesperado (es), inopinado (es)
- Swedish: oväntad (sv)
- Turkish: beklenmedik (tr), umulmadık (tr)
- Ukrainian: несподі́ваний (nespodívanyj), неочі́куваний (neočíkuvanyj), нежда́ний (neždányj), рапто́вий (raptóvyj) (sudden)
- Vietnamese: bất ngờ (vi)
- Welsh: annisgwyl (cy)
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