Probability adjectives are listed in this post. Each word below can often be found in front of the noun probability in the same sentence. This reference page can help answer the question what are some adjectives commonly used for describing PROBABILITY.
above, acceptable, actual, additional, annual, antecedent, apparent, appropriate, associated, average, bare, basic, bayesian, better, binomial, calculated, certain, clinical, common, conditional, considerable, constant, continuous, corresponding, cumulative
desired, different, discrete, distinct, empirical, equal, estimated, even, exact, expected, exponential, extreme, fair, finite, first, fixed, following, further, future, gaussian, general, good, great, greater, greatest
high, higher, highest, historic, historical, human, immediate, imminent, increased, increasing, independent, individual, inherent, initial, internal, intrinsic, joint, known, large, larger, least, less, linear, little, logical
low, lower, lowest, marginal, mathematical, maximum, mere, minimum, moral, more, most, much, national, natural, negligible, new, nonzero, normal, objective, only, original, other, overall, overwhelming, own
particular, poisson, positive, possible, posterior, posteriori, present, pretest, prior, priori, random, rational, real, reasonable, reduced, relative, remote, remotest, required, resulting, same, scientific, significant, simple, single
slight, slightest, small, smaller, smallest, specific, statistical, strong, strongest, subjective, substantial, such, sufficient, theoretical, total, true, unconditional, underlying, uniform, unknown, year, zero
Hope this word list had the adjective used with probability you were looking for. Additional describing words / adjectives that describe / adjectives of various nouns can be found in the other pages on this website.