The phrase "are tantamount" indicates an equivalence in status, importance, or effect between two things. Its antonyms are words that suggest a lack of equivalence or discrepancy between things. For example, the words "incomparable," "unequal," or "disconnected" convey the opposite meaning to "are tantamount." The term "disproportionate" implies that one thing is larger or greater than the other, whereas "inconsistency" denotes a lack of congruence or compatibility. Other antonyms include "unrelated," "dissimilar," and "uneven." Understanding the antonyms of "are tantamount" can help individuals communicate more precisely, and avoid confusion or misunderstanding.