From ante- (“before”) + ontem (“yesterday”). Compare Galician antonte.
- (Brazil) IPA(key): /ˌɐ̃.t͡ʃiˈõ.tẽj̃/ [ˌɐ̃.t͡ʃiˈõ.tẽɪ̯̃], /ɐ̃.teˈõ.tẽj̃/ [ɐ̃.teˈõ.tẽɪ̯̃]
- (Brazil) IPA(key): /ˌɐ̃.t͡ʃiˈõ.tẽj̃/ [ˌɐ̃.t͡ʃiˈõ.tẽɪ̯̃], /ɐ̃.teˈõ.tẽj̃/ [ɐ̃.teˈõ.tẽɪ̯̃]
- (Southern Brazil) IPA(key): /ˌɐ̃.teˈõ.tẽj̃/ [ˌɐ̃.teˈõ.tẽɪ̯̃], /ɐ̃.teˈõ.tẽj̃/ [ɐ̃.teˈõ.tẽɪ̯̃]
- Hyphenation: an‧te‧on‧tem
anteontem
- day before yesterday
- ereyesterday