The Oxford Thesaurus An A-Z Dictionary of Synonyms - immediatelyadv.

1) at once, instantly, instantaneously, promptly, right away, right now, without delay, unhesitatingly, without hesitation, forthwith, this instant, directly, in a wink, in a second, in a minute, tout de suite, instanter, Chiefly Brit straightaway or straight away, Colloq pronto, in a jiffy, in two shakes of a lamb's tail, before you can say 'Jack Robinson', at the drop of a hat: Come here immediately. I shall be there immediately. 2) directly, closely, intimately: These reactions are immediately concerned with the temperature. --conj. 3) when, as soon as, the moment (that) , Brit directly: Immediately he heard the news, he hurried to her side.