an involuntary movement, sound, or reaction is made suddenly and in a way that you cannot control
an involuntary gasp/shiver/twitch
Synonyms and related words
Not planned
random
arbitrary
spontaneous
2
happening or done without being intended
involuntary manslaughter
Synonyms and related words
Not planned
random
arbitrary
spontaneous
3
biologyrelating to processes in your body such as digestion that you are not conscious of controlling but which are controlled automatically by the brain
Synonyms and related words
Biological processes
absorption
adaptation
aerobic respiration
derived word
involuntarily
adverb
Synonyms and related words
Not planned
random
arbitrary
spontaneous
involuntary
adjective
US /ɪnˈvɑlənˌteri/
Other entries for this word
involuntary manslaughternoun
DEFINITIONS2
1
an involuntary movement, sound, or reaction is made suddenly and in a way that you cannot control