Well-found is often used to describe something that is well-equipped, well-provided, or well-stocked. Its antonyms, or opposite words, include poorly-equipped, inadequately-provided, or insufficiently-stocked. Other antonyms for well-found could include negative adjectives such as ill-equipped, ill-provided, or ill-stocked. These words suggest a lack of resources or a poorly maintained state. Additionally, words like destitute, impoverished, or deprived could be considered antonyms for well-found, implying a severe lack of resources or necessities. It is important to use antonyms appropriately in context and to choose words that accurately convey the intended meaning.