1. Having no will or choice; unwilling; not by an act of will; not done willingly.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• involuntarly,
• involunatary,
• involuntairly,
• involuntaraly,
• involantary,
• involontary,
• involitary,
• invlountary,
• involintary,
• involountary,
• involutary,
• involentary,
• involuntarely,
• involunatry,
• unvoluntarly,
• invoulantary,
• invoulntary,
• involuntry,
• invountary,
• involentry

• influenza,
• influent,
• involucre,
• involuntarily,
• involucrate,
• involution,
• involute,
• involvement,
• influence.

The adjective form of the word "involuntary" is "involuntary".

The plural form of the word "involuntary" is "involuntaries".

The singular form of the word "involuntary" is "involuntariness"