involuntarily
adverb /ɪnˈvɒləntrəli/
/ɪnˌvɑːlənˈterəli/
- suddenly, without you intending it or being able to control it
- She shuddered involuntarily.
Oxford Collocations DictionaryInvoluntarily is used with these verbs:- clench
- shiver
- shudder
- …
- without the person involved wanting it to happen
- He was involuntarily committed for psychiatric treatment