Aerobic vs Acrobatic - What's the difference?

As a noun aerobic

is aerobics.

of or pertaining to an acrobat .

(-)

Living or occurring only in the presence of oxygen e.g. aerobic bacteria.

Involving or improving oxygen consumption by the body e.g. aerobic exercise.

Of or relating to aerobics.

* anaerobic ----

(en adjective)

Of or pertaining to an acrobat .

vigorously active

* acrobatically