Obstacles adjectives are listed in this post. Each word below can often be found in front of the noun obstacles in the same sentence. This reference page can help answer the question what are some adjectives commonly used for describing OBSTACLES.
additional, administrative, apparent, artificial, big, biggest, bureaucratic, certain, challenging, chief, common, considerable, constitutional, countless, cultural, current, dangerous, daunting, different, difficult, economic, emotional, enormous, environmental
external, extraordinary, fatal, few, fewer, financial, first, formidable, fresh, fundamental, further, geographical, grave, great, greater, greatest, hidden, huge, human, imaginary, immediate, immense, impassable, important
impossible, incredible, inevitable, inherent, initial, innumerable, institutional, insuperable, insurmountable, intellectual, internal, intervening, invincible, key, large, last, legal, little, local, logistical, main, major, many, material
mechanical, mental, minor, moral, more, most, multiple, natural, new, numerous, obvious, old, only, ordinary, other, outward, overcoming, overwhelming, own, particular, past, peculiar, personal, petty
physical, political, possible, potential, powerful, practical, present, primary, principal, procedural, psychological, real, regulatory, same, serious, several, severe, significant, similar, slight, small, social, special, specific
spiritual, strong, structural, stubborn, substantial, such, technical, temporary, terrible, tremendous, trifling, unexpected, unforeseen, unique, unnecessary, unseen, unsurmountable, unusual, various, very, worst
Hope this word list had the adjective used with obstacles you were looking for. Additional describing words / adjectives that describe / adjectives of various nouns can be found in the other pages on this website.