all:
unintended.
engaged; destined:
unfixed.
noun:
impulsive,
unforced,
desultory,
compulsory,
aimless,
necessary,
random,
uncommitted,
nonelective,
impetuous,
mandatory,
forced,
required,
ordered,
sudden,
haphazard,
extemporaneous,
obligatory,
abrupt,
hit-or-miss,
unattached,
purposeless.
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