It doesn't matter

Use 'Ayichenek'im' in most situations; 'Chigir yelem' is more casual.

Use 'Laa yahimmu' in formal situations; 'Mish muhimm' is more casual.

Use 'Kichhu ashe jay na' in most situations; 'Kono somossa nei' is more casual.

Use 'No importa' in most situations; 'És igual' is more casual.

Use 'To nevadí' in most situations; 'Nevadí' is more casual.

Use 'Det er lige meget' in most situations; 'Det er ligegyldigt' is more formal.

Use 'Es ist egal' in most situations; 'Das ist egal' is slightly more casual.

Use 'Δεν πειράζει' in most situations; 'Δεν έχει σημασία' is more formal.

Use 'No importa' in most situations; 'Da igual' is more casual and can imply indifference.

Use 'See ei ole oluline' in most situations; 'Pole hullu' is more casual.

Use 'Ez du axola' in most situations; 'Berdin da' is more casual.

Use 'Ahamiyat nadare' in most situations; 'Mohim nist' is more casual.

Use 'Sillä ei ole väliä' in most situations; 'Ei haittaa' is more casual.

Use 'Ça n'a pas d'importance' in most contexts; 'Ça ne fait rien' is more casual.

Use 'Non importa' in most situations; 'Dá igual' is more casual.

Use 'Koi vaandho nathi' in most situations; 'Chalshe' is more casual.

Use 'Ba matsala' in most situations; 'Ba komai' is more casual.

Use 'Ze lo meshane' in most situations; 'Lo meshane' is more casual.

Use 'Koi baat nahi' in most situations; 'Koi fark nahi padta' is more formal.

Use 'Nem számít' in most situations; 'Nem baj' is more casual.

Use 'Tidak masalah' in most situations; 'Nggak apa-apa' is more casual.

Use 'Það skiptir ekki máli' in most situations; 'Það er sama' is more casual.

Use 'Non importa' in most situations; 'Non fa niente' is more casual.

Use 'Daijoubu desu' in most situations; 'Daijoubu' is more casual.

Use 'Gwaenchana yo' in most situations; 'Gwaenchana' is more casual.

Use 'Tai nesvarbu' in most situations; 'Nieko tokio' is more casual.

Use 'Tas nav svarīgi' in most situations; 'Nekas' is more casual.

Use 'Kahi harakat nahi' in most situations; 'Kahi nahi' is more casual.

Use 'Tidak mengapa' in most situations; 'Tak apa' is more casual.

Use 'Het maakt niet uit' in most situations; 'Maakt niet uit' is more casual.

Use 'Det spiller ingen rolle' in most situations; 'Det er likegyldig' is more formal.

Use 'Koi gal nahi' in most situations; 'Theek hai' is more casual.

Use 'To nie ma znaczenia' in most situations; 'To nic nie szkodzi' is more casual.

Use 'Não importa' in most situations; 'Não faz mal' is more casual.

Use 'Nu contează' in most situations; 'Nu-i problemă' is more casual.

Use 'Неважно' in most situations; 'Не имеет значения' is more formal.

Use 'Det spelar ingen roll' in most situations; 'Det är lugnt' is more casual.

Use 'Haijalishi' in most situations; 'Si muhimu' is more casual.

Use 'Athu oru poruttalla' in formal situations; 'Paravailla' is more casual.

Use 'Adi samasya kaadu' in most situations; 'Parvaaledu' is more casual.

Use 'Mai pen rai' in most situations; it's generally used in both formal and informal contexts.

Use 'Walang problema' in most situations; 'Ayos lang' is more casual.

Use 'Önemli değil' in most situations; 'Fark etmez' is more casual.

Use 'Це не має значення' in most situations; the shorter version is also common.

Use 'Koi baat nahi' in most situations; 'Koi farq nahi parta' is more formal.

Use 'Không sao đâu' in most situations; 'Không sao' is more casual.

Use 'Kò sí ohun tó ṣe pàtàkì' in most situations; 'Kò sí ìṣòro' is more casual.

Use 'Méi guānxi' in most situations; 'Méi shì' is more casual.

Use 'M4 gan2 yiu3' in most situations; 'Mou man tai' is more casual.

Use 'Akunankin' in most situations; 'Akukho okubi' is more casual.