infrequent

adj 0.748

sporadic

adj 0.709

intermittent

adj 0.695

periodic

adj 0.681

one-off

adj 0.667

nonrecurring

adj 0.663

aperiodic

adj 0.637

occurrent

adj 0.636

casual

adj 0.635

incidental

adj 0.634

off-and-on

adj 0.633

periodical

adj 0.630

nonregular

adj 0.619

sometime

adj 0.616

nonperiodic

adj 0.615

odd

adj 0.612

rare

adj 0.610

irregular

adj 0.603

uncommon

adj 0.600

accidental

adj 0.594

ordinary

adj 0.586

unconstant

adj 0.585

frequent

adj 0.585

seasonal

adj 0.585

temporary

adj 0.584

eventual

adj 0.577

momentary

adj 0.576

fitful

adj 0.575

incident

adj 0.573

unusual

adj 0.570

episodic

adj 0.569

occurring

adj 0.565

adventitious

adj 0.563

habitual

adj 0.562

usual

adj 0.562

minor

adj 0.561

transient

adj 0.560

noncontinuous

adj 0.560

random

adj 0.553

few and far between

adj 0.552

inconstant

adj 0.551

atypical

adj 0.550

chance

adj 0.549

odd-odd

adj 0.549

unscheduled

adj 0.548

conditional

adj 0.547

unexceptional

adj 0.546

transitory

adj 0.546

contingent

adj 0.546

exceptional

adj 0.546

regular open

adj 0.546

alternate

adj 0.545

quotidian

adj 0.545

nonordinary

adj 0.543

everyday

adj 0.542

frequentative

adj 0.542

quasiperiodic

adj 0.542

annual

adj 0.541

nonseasonal

adj 0.540

informal

adj 0.540

offhand

adj 0.539

alternating

adj 0.538

recurring

adj 0.538

fortuitous

adj 0.537

recurrent

adj 0.535

fluctuational

adj 0.535

untypical

adj 0.535

ephemeral

adj 0.535

common

adj 0.534

nonscheduled

adj 0.534

uncustomary

adj 0.534

opportunistic

adj 0.534

biannual

adj 0.534

coincidental

adj 0.533

regular

adj 0.532

continual

adj 0.532

erratic

adj 0.532

paroxysmal

adj 0.531

optional

adj 0.529

other

adj 0.528

intercurrent

adj 0.528

oddball

adj 0.528

semiregular

adj 0.527

anomalous

adj 0.527

aseasonal

adj 0.527

marginal

adj 0.527

odd-even

adj 0.527

weekend

adj 0.527

transeunt

adj 0.526

singular

adj 0.524

sundry

adj 0.524

ad hoc

adj 0.524

paucal

adj 0.524

unfrequented

adj 0.523

impermanent

adj 0.523

situational

adj 0.522

variable

adj 0.522

variant

adj 0.522

quondam

adj 0.522

unanticipated

adj 0.520