Frequencies adjectives are listed in this post. Each word below can often be found in front of the noun frequencies in the same sentence. This reference page can help answer the question what are some adjectives commonly used for describing FREQUENCIES.
actual, angular, audio, certain, characteristic, corresponding, cumulative, different, discrete
electromagnetic, equal, expected, following, fundamental, greater, harmonic, high, higher
highest, individual, intermediate, light, low, lower, lowest, many, microwave
more, multiple, natural, negative, new, observed, optical, other, particular
positive, possible, relative, resonant, same, several, signal, similar, sound
spatial, specific, such, ultrasonic, variable, various, vibrational, wave
Hope this word list had the adjective used with frequencies you were looking for. Additional describing words / adjectives that describe / adjectives of various nouns can be found in the other pages on this website.