This chapter provides a unified analysis of adnominal and predicate adjectives in Romance and Germanic by distinguishing three types of feature sharing: agreement, concord and projection, along the lines of Giusti (2015). It claims that in both Romance and Germanic, an uninterpretable feature of N agrees with possessive adjectives, while adnominal adjectives concord with N in a Spec-Head configuration checking an uninterpretable feature bundle on A. Romance and Germanic only differ in how concord is spelled out. Romance adjectives (with the exception of Walloon) are inflected for nominal features and concord with null head. German adjectives are uninflected and concord with an overt N-segment. The proposal argues against a unification of concord and agreement and in favour of an autonomous category adjective crosslinguistically