accidental

adj 0.880

unintentional

adj 0.673

unintended

adj 0.671

inadvertent

adj 0.670

fortuitous

adj 0.667

serendipitous

adj 0.643

incidental

adj 0.626

unplanned

adj 0.614

adventitious

adj 0.612

coincidental

adj 0.611

by the by

adj 0.599

unanticipated

adj 0.579

haphazard

adj 0.569

incident

adj 0.568

unexpected

adj 0.568

offhand

adj 0.567

unforeseen

adj 0.564

offhanded

adj 0.553

unfortunate

adj 0.549

unwitting

adj 0.549

unpremeditated

adj 0.545

unfallen

adj 0.544

off-handed

adj 0.543

unpredicted

adj 0.538

unlooked for

adj 0.537

careless

adj 0.537

unaccusative

adj 0.536

spontaneous

adj 0.531

unscheduled

adj 0.531

mistaken

adj 0.531

uncaught

adj 0.530

adventive

adj 0.528

happed

adj 0.528

gone wrong

adj 0.527

clumsy

adj 0.527

casual

adj 0.526

coincident

adj 0.526

unlucky

adj 0.524

chance

adj 0.517

errant

adj 0.515

ad hoc

adj 0.515

advertent

adj 0.514

unsuspecting

adj 0.512

impromptu

adj 0.511

unsuspected

adj 0.510

random

adj 0.509

lucky

adj 0.509

occasional

adj 0.508

caught on the hop

adj 0.508

misfortunate

adj 0.507

fortunate

adj 0.506

ex gratia

adj 0.504

unforeseeable

adj 0.503

ill-placed

adj 0.503

occurrent

adj 0.503

mistimed

adj 0.501

about

adj 0.501

errored

adj 0.501

acquired

adj 0.501