Definition of well-formed

: produced by the correct application of a set of transformations : grammatical sense 2a grammar … specifies the infinite set of well-formed sentences— Jerry Fodor & Jerrold J. Katz

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Other Words from well-formed

well-formedness \ ˌwelˈfȯ(r)m(ə̇)dnə̇s \ noun, plural -es

First Known Use of well-formed

1946, in the meaning defined above

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The first known use of well-formed was in 1946

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readily or continually undergoing change

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