truly
adverb
in accordance with truth or fact or reality
“she was now truly American”
“a genuinely open society”
by right
“baseball rightfully is the nation's pastime”
Synonymsrightfullywith sincerity; without pretense
“she praised him sincerely for his victory”
“was unfeignedly glad to see his old teacher”
in fact (used as intensifiers or sentence modifiers)
“in truth, moral decay hastened the decline of the Roman Empire”
“really, you shouldn't have done it”
Source: WordNet 3.1, Princeton University
