1.  regularity(n = noun.attribute) geometrical regularity - a property of polygons: the property of having equal sides and equal angles;
is a kind of balance, correspondence, symmetricalness, symmetry
Derived form adjective regular₁₁

2.  regularity(n = noun.attribute) - the quality of being characterized by a fixed principle or rate; "he was famous for the regularity of his habits"
is a kind of quality
has particulars: cyclicity, periodicity, methodicalness, orderliness, uniformity, evenness, invariability, even spacing, steadiness
Antonym: irregularity
Derived forms adjective regular₅, adjective regular₇, adjective regular₁₂, adjective regular₁, adjective regular₃, adjective regular₆, adjective regular₄

   The condition or quality of being regular; as, regularity of outline; the regularity of motion. [1913 Webster]

N  uniformity, homogeneity, homogeneousness, consistency, connaturality, connaturalness, homology, accordance, conformity, agreement, consonance, uniformness, regularity, constancy, even tenor, routine, monotony, uniform, homogeneous, homologous, of a piece, consistent, connatural, monotonous, even, invariable, regular, unchanged, undeviating, unvaried, unvarying, unsegmented, uniformly, uniformly with, in harmony with, always, invariably, without exception, without fail, unfailingly, never otherwise, by clockwork, ab uno disce omnes.

N  order, regularity, uniformity, symmetry, lucidus ordo, music of the spheres, gradation, progression, series, subordination, course, even tenor, routine, method, disposition, arrangement, array, system, economy, discipline orderliness, rank, place, orderly, regular, in order, in trim, in apple-pie order, in its proper place, neat, tidy, en regle, well regulated, correct, methodical, uniform, symmetrical, shipshape, businesslike, systematic, unconfused &c (confuse), arranged, in order, methodically, in turn, in its turn, by steps, step by step, by regular steps, by regular gradations, by regular stages, by regular intervals, seriatim, systematically, by clockwork, gradatim, at stated periods, natura non facit saltum, order is heaven's first law, order from disorder sprung, ordo est parium dispariumque rerum sua loca tribue.

N  frequency, oftness, oftenness, commonness, repetition, normality, example (conformity), routine, custom (habit), regularity, uniformity, constancy, clock-work precision, punctuality, even tenor, system, routine, formula, rule, keynote, standard, model, precedent, conformity, frequent, many times, not rare, thickcoming, incessant, perpetual, continual, steady, constant, thick, uniform, repeated, customary, (habit), regular (normal), according to rule, common, everyday, usual, ordinary, familiar, old-hat, boring, well-known, trivial, often, oft, ofttimes, oftentimes, frequently, repeatedly, unseldom, not unfrequently, in quick succession, in rapid succession, many a time and oft, daily, hourly, every day, every hour, every moment, 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), most often, commonly, sometimes, occasionally, at times, now and then, from time to time, there being times when, toties quoties, often enough, when the mood strikes, again and again.

N  regularity of recurrence, periodicity, intermittence, beat, oscillation, pulse, pulsation, rhythm, alternation, alternateness, alternativeness, alternity, bout, round, revolution, rotation, turn, say, anniversary, jubilee, centenary, catamenia, courses, menses, menstrual flux, rota, cycle, period, stated time, routine, days of the week, Sunday, Monday, months of the year, January, feast, fast, Christmas, Easter, New Year's day, Allhallows, Allhallowmas, All Saints' Day, All Souls', All Souls' Day, Ash Wednesday, bicentennial, birthday, bissextile, Candlemas, Dewali, groundhog day, Halloween, Hallowmas, Lady day, leap year, Midsummer day, Muharram, woodchuck day, St. Swithin's day, natal day, yearbook, yuletide, punctuality, regularity, steadiness, periodic, periodical, serial, recurrent, cyclical, rhythmical, recurring, intermittent, remittent, alternate, every other, hourly, diurnal, daily, quotidian, tertian, weekly, hebdomadal, hebdomadary, biweekly, fortnightly, bimonthly, catamenial, monthly, menstrual, yearly, annual, biennial, triennial, centennial, secular, paschal, lenten, regular, steady, punctual, regular as clockwork, periodically, at regular intervals, at stated times, at fixed established, at established periods, punctually, de die in diem, 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.

geometrical regularity