Muscle adjectives are listed in this post. Each word below can often be found in front of the noun muscle in the same sentence. This reference page can help answer the question what are some adjectives commonly used for describing MUSCLE.
abdominal, abnormal, accessory, active, acute, additional, adjacent, affected, american, animal, antagonist, antagonistic, anterior, appropriate, associated, back, biceps, big, brachialis, cardiac, certain, chronic, ciliary, circular, common, complete, contracted, corded, corresponding, cremaster, cricopharyngeus, cricothyroid, damaged, decreased, deep, deltoid, denervated, detrusor, developed, different
diffuse, digastric, distal, distinct, economic, enough, entire, excessive, extensive, extensor, extra, extraocular, extreme, facial, few, financial, fine, firm, first, flat, fresh, frontalis, functional, gastrocnemius, general, generalized, gluteal, good, gracilis, great, greater, hard, healthy, heart, heavy, high, hired, human, iliacus, iliopsoas
important, increased, individual, induced, inferior, infraspinatus, injured, inspiratory, intellectual, intercostal, interosseous, intrinsic, involuntary, involved, isolated, isometric, large, larger, largest, last, lateralis, latter, lean, less, levator, like, little, local, long, longitudinal, longus, low, lower, lumborum, main, major, manual, many, masseter, mastoid
medius, mental, mere, mild, military, minor, moral, more, most, much, multiple, mylohyoid, myocardial, neck, new, nondepolarizing, normal, oblique, ocular, oculi, omohyoid, only, opposing, orbicularis, other, overall, own, painful, papillary, paraspinal, particular, pectoral, pectoralis, pelvic, peripheral, pharyngeal, piriformis, platysma, political, poor
posterior, powerful, primary, progressive, prolonged, proper, proximal, psoas, pterygoid, pure, quadriceps, raw, real, rectus, red, reduced, related, relaxed, respiratory, same, sartorius, separate, serious, several, severe, shaped, significant, simple, single, skeletal, small, smaller, smooth, soleus, solid, sore, specific, spiritual, stapedius, sternocleidomastoid
sternomastoid, strained, striated, striped, strong, stronger, subscapularis, superficial, superior, supraspinatus, surrounding, sustained, taut, temporal, temporalis, tense, thick, thin, tight, tiny, torn, total, tough, trapezius, triangular, triceps, twitch, underlying, uterine, various, voluntary, weak, white, whole
Hope this word list had the adjective used with muscle you were looking for. Additional describing words / adjectives that describe / adjectives of various nouns can be found in the other pages on this website.