1) Accurately 2) Actually 3) Beyond doubt 4) Candidly 5) Correctly 6) Directly 7) Frankly 8) Honestly or candidly 9) In fact 10) Justly 11) Openly 12) Really 13) Rightly 14) Sincerely 15) Strictly 16) With truth 1) Fairly 2) Frankly 3) From the hip 4) Genuinely 5) Honestly 6) Precisely 
[adv] - with truth