undergone

As a verb undergone

is .

As a noun undertone is

an auditory tone of low pitch or volume.

As verbs the difference between experience and undergone

is that experience is to observe certain events; undergo a certain feeling or process; or perform certain actions that may alter one or contribute to one's knowledge, opinions, or skills while undergone is past participle of lang=en.

As a noun experience

is event(s) of which one is cognizant.