unprompted
Of one's volition
Unprompted describes actions or speech that occur without being asked, requested, or cued: She apologized unprompted.
The word emphasizes spontaneity or self-motivation—something happens on its own initiative rather than in response to external pressure.
He unprompted offered to help with the dishes.
Arising without external cause
- impromptuWithout advance preparation
- unrehearsedNot practiced beforehand
- unscriptedNot pre-written
- ad-libUnscripted speech or remark
extemporaneous · offhand · freestyle · improvised · natural · unforced · effortless · genuine
Not anticipated beforehand
- surpriseUnexpected event causing astonishment
- unforeseenNot predicted or expected
- unanticipatedNot predicted beforehand
- unpredictableCannot be anticipated
sudden · abrupt · startling · astonishing · random · unsolicited · unlooked-for · unannounced
Concerned for others' welfare
- charitableGiving to those needing
- generousWilling to give freely
- selflessConcerned with others' welfare
- benevolentDesiring others' welfare
philanthropic · voluntary · proactive · goodwill · kindness · helpfulness · unasked · self-motivated
Acting without deliberation
- rashHeedless or skin irritation
- recklessCarelessly ignoring danger
- impetuousActing on sudden urge
- instinctiveArising without conscious thought
compulsive · unthinking · heedless · hasty · knee-jerk · capricious · whimsical · uninhibited
spontaneous
Arising without external cause
- impromptuWithout advance preparation
- unrehearsedNot practiced beforehand
- unscriptedNot pre-written
ad-lib · extemporaneous · offhand · freestyle · improvised · natural · unforced · effortless · genuine · unstudied
unexpected
Not anticipated beforehand
- surpriseUnexpected event causing astonishment
- unforeseenNot predicted or expected
- unanticipatedNot predicted beforehand
unpredictable · sudden · abrupt · startling · astonishing · random · unsolicited · unlooked-for · unannounced · uninvited
altruistic
Concerned for others' welfare
- charitableGiving to those needing
- generousWilling to give freely
- selflessConcerned with others' welfare
benevolent · philanthropic · voluntary · proactive · goodwill · kindness · helpfulness · unasked · self-motivated · initiative
impulsive
Acting without deliberation
instinctive · compulsive · unthinking · heedless · hasty · knee-jerk · capricious · whimsical · uninhibited · uncontrolled
unpromptedcontrived
Deliberately manufactured, unnatural
rehearsed · scripted · staged · calculated · orchestrated
prompt, promptly, prompted, prompting, promptness, prompts, prompter, promptitude