Term: on-the-spot

on-the-spot(adj/adv) /ˌɒn.ðəˈspɒt/
Similar to: immediate; instant; spontaneous; extemporaneous
Definition: something that happens immediately, without any waiting or preparation.
Translation: uz vietas, tūlītējs, bez sagatavošanās

Examples:
“The manager gave him an on-the-spot job offer after the interview went so well.”
“The police can issue on-the-spot fines for speeding in this area.”
“The reporter put the politician on-the-spot with a very difficult question about the budget.”