verily (adv.)

• actually
• assuredly
• certainly
• clearly
• decidedly
• demonstrably
• factually
• forsooth
• historically
• indeed
• indubitably
• manifestly
• nay
• noticeably
• observably
• obviously
• patently
• positively
• quite
• really
• sensibly
• seriously
• truly
• unambiguously
• undeniably
• undoubtedly
• unmistakably
• visibly
• yea