Roget's Thesaurus by Peter Mark Roget

#136. Frequency.窶年. frequency, oftness[obs3], oftenness[obs3], commonness; repetition &c. 104; normality &c. 80; example (conformity) 82; routine, custom (habit) 613. regularity, uniformity, constancy, clock-work precision; punctuality &c. (exactness) 494; even tenor; system; routine &c. (custom) 613; formula; rule &c. (form, regulation) 697; keynote, standard, model; precedent &c. (prototype) 22; conformity &c. 82. V. recur &c. 104; do nothing but; keep, keep on. Adj. frequent, many times, not rare, thickcoming[obs3], incessant, perpetual, continual, steady, constant, thick; uniform; repeated &c. 104; customary &c. 613 (habit) 613; regular (normal) 80; according to rule &c. (conformable) 82. common, everyday, usual, ordinary, familiar. old-hat, boring, well-known, trivial. Adv. often, oft; ofttimes[obs3], oftentimes; frequently; repeatedly &c. 104; unseldom[obs3], not unfrequently[obs3]; in quick succession, in rapid succession; many a time and oft; daily, hourly &c.; every day, every hour, every moment &c. perpetually, continually, constantly, incessantly, without ceasing, at all times, daily and hourly, night and day, day and night, day after day, morning noon and night, ever anon, invariably (habit) 613. most often; commonly &c. (habitually) 613. sometimes, occasionally, at times, now and then, from time to time, there being times when, toties quoties[Lat][obs3], often enough, when the mood strikes, again and again. #137. Infrequency.窶年. infrequency, rareness, rarity; fewness &c. # 103; seldomness[obs3]; uncommonness. V. be rare &c. adj. Adj. unfrequent[obs3], infrequent; rare, rare as a blue diamond; few &c. 103; scarce; almost unheard of, unprecedented, which has not occurred within the memory of the oldest inhabitant, not within one's previous experience; not since Adam[obs3]. scarce as hen's teeth; one in a million; few and far between. Adv. seldom, rarely, scarcely, hardly; not often, not much, infrequently, unfrequently[obs3], unoften[obs3]; scarcely, scarcely ever, hardly ever; once in a blue moon. once; once in a blue moon; once in a million years; once for all, once in a way; pro hac vice[Lat]. Phr. ein mal kein mal[German]. #138. Regularity of recurrence. Periodicity.窶年. periodicity, intermittence; beat; oscillation &c. 314; pulse, pulsation; rhythm; alternation, alternateness, alternativeness, alternity[obs3]. bout, round, revolution, rotation, turn, say. anniversary, jubilee, centenary. catamenia[obs3]; courses, menses, menstrual flux. [Regularity of return] rota, cycle, period, stated time, routine; days of the week; Sunday, Monday &c.; months of the year; January &c.; feast, fast &c.; Christmas, Easter, New Year's day &c. Allhallows[obs3], Allhallowmas[obs3], All Saints' Day; All Souls', All Souls' Day; Ash Wednesday, bicentennial, birthday, bissextile[obs3], Candlemas[obs3], Dewali, groundhog day [U.S.], Halloween, Hallowmas[obs3], Lady day, leap year, Midsummer day, Muharram, woodchuck day [U.S.], St. Swithin's day, natal day; yearbook; yuletide. punctuality, regularity, steadiness. V. recur in regular order, recur in regular succession; return, revolve; come again, come in its turn; come round, come round again; beat, pulsate; alternate; intermit. Adj. periodic, periodical; serial, recurrent, cyclical, rhythmical; recurring &c. v.; intermittent, remittent; alternate, every other. hourly; diurnal, daily; quotidian, tertian, weekly; hebdomadal|, hebdomadary|; biweekly, fortnightly; bimonthly; catamenial|; monthly, menstrual; yearly, annual; biennial, triennial, &c.; centennial, secular; paschal, lenten, &c. regular, steady, punctual, regular as clockwork. Adv. periodically &c. adj.; at regular intervals, at stated times; at fixed established, at established periods; punctually &c. adj. de die in diem[Lat]; from day to day, day by day. by turns; in turn, in rotation; alternately, every other day, off and on, ride and tie, round and round. #139. Irregularity of recurrence.窶年. irregularity, uncertainty, unpunctuality; fitfulness &c. adj.; capriciousness, ecrhythmus|. Adj. irregular, uncertain, unpunctual, capricious, desultory, fitful, flickering; rambling, rhapsodical; spasmodic; immethodical[obs3], unmethodical, variable. Adv. irregularly &c. adj.; by fits and starts &c. (discontinuously) 70. SECTION VII. CHANGE