The phrase "patterns upon" refers to a distinct design or arrangement of shapes, lines, or colors. The antonyms (opposite) of "patterns upon" could be described as disorganized, chaotic, or formless. These kinds of patterns lack structure or regularity and may appear random or unpredictable. Another antonym for "patterns upon" might be plain or uniform, indicating a lack of any variation in design or ornamentation. Unlike "patterns upon," these antonyms suggest simplicity or absence of ornamentation, rather than the intentional arrangement of shapes and colors. Overall, the antonyms for "patterns upon" evoke a sense of disorder or plainness, rather than the intricate beauty and intentional design implied by the original phrase.