biweekly

adv 0.829

bimonthly

adv 0.792

semi-weekly

adv 0.769

semimonthly

adv 0.768

twice-weekly

adv 0.749

biannually

adv 0.740

biennially

adv 0.718

semiannually

adv 0.709

semi-annually

adv 0.691

half-yearly

adv 0.680

quarterly

adv 0.672

weekly

adv 0.649

half-hourly

adv 0.626

periodically

adv 0.622

every second

adv 0.612

triennially

adv 0.604

monthly

adv 0.599

nightly

adv 0.586

midweek

adv 0.573

every so often

adv 0.571

twice

adv 0.570

annually

adv 0.567

yearly

adv 0.563

regularly

adv 0.559

per mensem

adv 0.558

hourly

adv 0.556

intermittently

adv 0.556

twofold

adv 0.552

every once in a while

adv 0.549

weekends

adv 0.548

once in a while

adv 0.546

seasonally

adv 0.544

alternately

adv 0.540

unfrequently

adv 0.539

now and then

adv 0.537

infrequently

adv 0.537

occasionally

adv 0.534

fourthly

adv 0.534

half-time

adv 0.530

daily

adv 0.525

cyclically

adv 0.522

irregularly

adv 0.522

weeknights

adv 0.521

on the regular

adv 0.520

two by two

adv 0.520

oftimes

adv 0.518

double

adv 0.514

off and on

adv 0.512

fourfold

adv 0.512

weekdays

adv 0.510

recurrently

adv 0.510

doubly

adv 0.506

off-time

adv 0.503

secondly

adv 0.501

diurnally

adv 0.501