The English term "real, actual, genuinely, truly, really, factual" matches the Dutch term "werkelijk"

other english words that include "genuinely" : dutch :
marriage, really, authentic, genuinely, matrimony echt
truly, genuinely, really wezenlijk
other english words that include "truly" : dutch :
truly, genuinely, really wezenlijk
other english words that include "factual" : dutch :
factual, indeed feitelijk