compounded

1. 1
   verb

   Simple past tense and past participle of compound.

   The savings compounded quietly over many years.

   His mistakes compounded until the whole plan fell apart.

   Note

   One spelling does two jobs, and both draw on a verb with several lives. Interest compounded overnight uses the intransitive financial sense. A debt compounded with creditors was settled for less than the claim. A remedy compounded from herbs was mixed. After be, the participle shades into the adjective meaning "composite", so a compounded formula can be read either way.

2. 2
   adjective

   Made up of multiple parts that combine and interact to produce a single composite result.

   The treatment relied on a compounded formula drawn from several active ingredients.

   Analysts described the situation as a compounded problem with many interacting causes.

   Similarcomposite, combined, complex, multifaceted

   Oppositesimple

   Note

   Here the adjective is gradable: something can be more or most compounded, as if complexity came in layers. The habit shows in the history of chemistry, where Matthew Daniel Eddy and Ursula Klein (2023) report a distinction between "mixts and more compounded substances" and between ultimate principles and "more proximate, compounded principles." Reach for it when the stress falls on how the parts interact, not merely that there are several.

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