Involuntary and Up and down

Involuntary adjective - Not made or done willingly or by choice.

Up and down and involuntary are semantically related In some cases you can replace phrase "Up and down" with "Involuntary", this terms are similar.

Nearby Word: involuntarily

Up and down adverb - Moving backward and forward along a given course.

Involuntary and up and down are semantically related in tending to act without thought topic. Sometimes you can use "Involuntary" instead an adjective phrase "Up and down".