Alternatively in a sentence as an adverb

Or, alternatively, you can "man up" and own your original opinion.

Or alternatively a new ATX type form factor that includes something that looks like a power supply but is a chiller that attaches via tubes to the processor socket.

Alternatively definitions

adverb

in place of, or as an alternative to; "Felix became a herpetologist instead"; "alternatively we could buy a used car"

See also: instead