surely

As adverbs the difference between surely and totally

is that surely is without fail while totally is entirely; completely.

As an adverb surely

is without fail.

As a noun success is

something which happens as a consequence; the outcome or result.

As a proper noun Success is

a town in Arkansas.

As adverbs the difference between inevitably and surely

is that inevitably is in a manner that is impossible to avoid or prevent while surely is without fail.

As adverbs the difference between surely and obviously

is that surely is without fail while obviously is in a obvious manner; clearly apparent.

As adverbs the difference between surely and likely

is that surely is without fail while likely is similarly.

As an adjective likely is

probable; having a greater-than-even chance of occurring.

As a noun likely is

something or somebody considered likely.

As adverbs the difference between surely and steadily

is that surely is without fail while steadily is in a steady manner.

As adverbs the difference between literally and surely

is that literally is (speech act) word for word; not figuratively; not as an idiom or metaphor while surely is without fail.

As an adverb surely is

without fail.

Really is a synonym of surely.

As adverbs the difference between surely and really

is that surely is without fail while really is actually; in fact; in reality.

As an interjection really is

indicating surprise at, or requesting confirmation of, some new information; to express skepticism.