Princeton's WordNet

1. on the spur of the moment, suddenly(adverb)

   on impulse; without premeditation

   "he decided to go to Chicago on the spur of the moment"; "he made up his mind suddenly"

Wiktionary

1. on the spur of the moment(Adverb)

   On very short notice; spontaneously.

• skielik, sonder beplanningAfrikaans
• إرْتِجالا، بِدون إعْدادArabic
• спонтанноBulgarian
• de um momento para o outroPortuguese (BR)
• z okamžitého popuduCzech
• einer Eingebung des Augenblicks folgendGerman
• efter en pludselig indskydelseDanish
• ξαφνικά, στα καλά καθούμεναGreek
• jalamaid, ette plaanimataEstonian
• به اقتضاي وقتFarsi
• hetken mielijohteestaFinnish
• sous l'impulsion du momentFrench
• מִתוֹך דָחַף רִגעִיHebrew
• तत्कालHindi
• bez promišljanja, impulzivnoCroatian
• a pillanat hatása alattHungarian
• tiba-tibaIndonesian
• fyrirvaralaustIcelandic
• (d'impulso), (lì per lì)Italian
• 時のはずみでJapanese
• 갑자기Korean
• netikėtai, šovus į galvąLithuanian
• acumirklī; tajā pašā brīdīLatvian
• tiba-tibaMalay
• in een opwellingDutch
• på stående fotNorwegian
• pod wpływem nagłego impulsuPolish
• dum momento para o outroPortuguese
• sub impulsul mo­mentuluiRomanian
• экспромтомRussian
• z momentálneho popuduSlovak
• po trenutnem navdihuSlovenian
• impulsivnoSerbian
• utan närmare eftertanke, spontantSwedish
• อย่างทันทีThai
• önceden tasarlamadanTurkish
• 一時衝動Chinese (Trad.)
• експромтом, відразуUkrainian
• اچانکUrdu
• do sự thôi thúc của tình thếVietnamese
• 一时冲动Chinese (Simp.)