Contextualism is a view about meaning, semantic content and truth-conditions, bearing significant consequences for the characterisation of explicit and implicit content, the decoding/inferring distinction and the semantics/pragmatics interface. According to the traditional perspective in semantics (called “literalism” or “semantic minimalism”), it is possible to attribute truth-conditions to a sentence independently of any context of utterance, i.e. in virtue of its meaning alone. One must then distinguish between the proposition literally expressed by a sentence and the implicit meaning of the sentence. Over the past forty years, however, an increasing number of linguists and philosophers have begun to underline the phenomenon of semantic underdetermination: the encoded meaning of the sentence employed by a speaker underdetermines the proposition explicitly expressed by an utterance of that sentence. According to the extreme version of this perspective – labelled “radical contextualism” – no sentence of a natural language expresses a complete proposition, or has fixed truth-conditions, even when unambiguous and devoid of indexicals. A sentence expresses a proposition only when completed and enriched with pragmatic constituents that do not correspond to any syntactic element of the sentence and yet are part of its semantic interpretation. The opposition between minimalism and contextualism can be traced back to a disagreement – at the very beginning of the contemporary philosophy of language – between philosophers interested mainly in formal languages on the one hand, and those interested mainly in natural languages on the other. More broadly, “contextualism” may be used to refer to a family of views which includes moderate contextualism (also called “indexicalism”), radical contextualism and non-indexical contextualism – and which contrasts with semantic minimalism. The main open point concerns the consequences the debate between minimalism and contextualism has for the semantics/pragmatics distinction (Bianchi 2004; Szabò 2005; Turner 1999).