YOU SAID:
I am dumbfounded by todays experiences
INTO JAPANESE
私は今日の経験にd然としています
BACK INTO ENGLISH
I am dumb to today's experience
INTO JAPANESE
私は今日の経験に愚かです
BACK INTO ENGLISH
I am stupid in today's experience
INTO JAPANESE
私は今日の経験で愚かです
BACK INTO ENGLISH
I am stupid in today's experience
Come on, you can do better than that.