not subject to the control of the will; "involuntary manslaughter"; "involuntary servitude"; "an involuntary shudder"; "It (becoming a hero) was involuntary. They sank my boat"- John F.Kennedy
controlled by the autonomic nervous system; without conscious control; "involuntary muscles"; "gave an involuntary start"
using (or as if using) mechanisms or tools or devices; "a mechanical process"; "his smile was very mechanical"; "a mechanical toy"
relating to or governed by or in accordance with mechanics; "a belief that the universe is a mechanical contrivance"; "the mechanical pressure of a strong wind"
relating to or concerned with machinery or tools; "mechanical arts"; "mechanical design"; "mechanical skills"
filled with regret or concern; used often to soften an unpleasant statement; "I'm afraid I won't be able to come"; "he was afraid he would have to let her go"; "I'm afraid you're wrong"
feeling worry or concern or insecurity; "She was afraid that I might be embarrassed"; "terribly afraid of offending someone"; "I am afraid we have witnessed only the first phase of the conflict"
having feelings of aversion or unwillingness; "afraid of hard work"; "afraid to show emotion"