Entry 1 sense Webster, 1913 mirabile dictu /(mē̇*rä"bĭ*lā̇ dĭk"to͞o)/ · mi·ra·bi·le dic·tu · IPA /mɪˌɹɑːbɪleɪ ˈdɪktuː/ 01 adv. Remarkably; strange to say; marvelous to relate. 1. Remarkably; strange to say; marvelous to relate.