Periods adjectives are listed in this post. Each word below can often be found in front of the noun periods in the same sentence. This reference page can help answer the question what are some adjectives commonly used for describing PERIODS.
above, active, actual, additional, advanced, alternate, ancient, annual, astronomical, bad, balanced, baroque, best, brief, briefer, brightest, brilliant, broad, busiest, busy, byzantine, certain, chief, chronological, classic, classical, cold, colder, colonial, comparable, consecutive, considerable, contemporary, continuous, corresponding, creative, cretaceous, critical, crucial, cultural, daily, dangerous, dark, darker, darkest, day, defined, definite
developmental, different, difficult, discrete, distant, distinct, distinctive, double, down, dry, dull, earlier, earliest, early, economic, eloquent, english, enormous, enough, entire, equal, eventful, exceptional, exciting, extended, extensive, fallow, fertile, few, finite, first, fiscal, fixed, flourishing, following, formative, former, fourth, free, frequent, further, future, general, geologic, geological, glacial, glorious, glowing
good, gothic, grand, great, greater, greatest, greek, happiest, happy, harmonious, heavy, hellenistic, historic, historical, hot, hour, idle, immense, important, in, indefinite, individual, inflationary, infrequent, initial, intense, interesting, interglacial, interim, intermediate, intermittent, irregular, key, large, larger, last, late, later, latest, latter, lean, lengthened, lengthy, lesser, limited, literary, long, longer
longest, low, lunar, main, major, many, marked, meal, measured, medieval, memorable, menstrual, middle, minute, modern, momentous, month, monthly, more, most, multiple, musical, national, natural, new, normal, numerous, obscure, occasional, off, older, only, orbital, ordinary, other, overlapping, own, painful, particular, past, peaceful, peak, polished, postcolonial, postnatal, postwar, preceding, precise
prehistoric, prescribed, previous, principal, prior, probationary, productive, prolonged, proper, prophetic, prosperous, protracted, quarterly, quiescent, quiet, quinquennial, rainy, rare, reasonable, recent, recessionary, recurrent, refractory, regular, remarkable, remote, remotest, respective, rest, revolutionary, roman, rough, rounded, same, seasonal, second, sensitive, separate, separated, several, short, shorter, shortest, significant, silent, similar, slack, slow
small, smaller, sonorous, soviet, special, specific, splendid, stable, stated, stately, stationary, stormy, stressful, subsequent, substantial, successive, such, sustained, temporal, temporary, term, tertiary, third, time, transient, transitional, turbulent, turned, uncertain, unequal, unknown, unlimited, up, usual, variable, various, vast, violent, vulnerable, warm, warmer, week, weekly, wet, whole, worst, year
Hope this word list had the adjective used with periods you were looking for. Additional describing words / adjectives that describe / adjectives of various nouns can be found in the other pages on this website.