What does "interminable" most nearly mean?

"Interminable" most nearly means "perpetual," as it describes something that seems endless or interminable in nature. This word conveys the idea of an ongoing state that never appears to reach a conclusion or end, which aligns with the concept of perpetuity.

In context, you might encounter "interminable" in a sentence discussing a conversation or situation that stretches on without a foreseeable end, creating a sense of tedium or frustration due to its duration. This meaning is supported by the connotation of “perpetual,” which also implies something that continues indefinitely without interruption.

The other options do not fit the meaning of "interminable." "Infrequent" suggests something that happens rarely, "random" refers to something that occurs without a specific pattern, and "curable" pertains to the ability to be cured, which is unrelated to the idea of something being endless. Therefore, "perpetual" is the most accurate synonym for "interminable."