suddenly

to realize or notice something unexpectedly

to experience a quick onset of fear

to become scared in an instant

to be surprised or shocked unexpectedly

soudainement alerte

to become watchful and attentive unexpectedly

devenir vigilant et attentif de manière inattendue

soudainement méfiant

to become cautious or suspicious unexpectedly

Devenir brusquement prudent.

to cease an action or movement without warning

to start without warning

réaliser soudainement

to become aware of something unexpectedly

prendre conscience de quelque chose de manière inattendue

apparaître soudainement

to come into sight unexpectedly

apparaître de manière inattendue

se souvenir soudainement

to recall a memory without warning

se rappeler un souvenir sans avertissement

disparaître soudainement

to vanish from sight unexpectedly

disparaître de la vue de manière inattendue

disparaître soudainement

to disappear from sight quickly and mysteriously

disparaître de la vue rapidement et mystérieusement