Universal markedness in gradable adjectives revisited

Cross-linguistically, comparative-form adjectives (like English taller) are consistently derived from (or in many languages identical to) their positive-form counterparts (like English tall). This fact stands in tension with prevailing formal semantic treatments of gradable adjectives as degree relations that require extra semantic machinery not only for comparative predication but also for positive predication; for the latter, scholars typically posit a null morpheme or type-shift pos. In this short article, we review morphophonological evidence showing that in Arabic, comparative-form adjectives (like aTwal ‘taller’) are of equal complexity with their positive-form counterparts (like Tawiil ‘tall’), both derived from a common tri-consonantal root (in this case Twl), rather than one word being derived from the other. This raises the tantalizing possibility of Arabic becoming the first documented case of a language overtly realizing pos, with adjectives like Tawiil consisting of a degree-relation-denoting root and a pos-denoting template. We nonetheless conclude (albeit tentatively) that such an analysis is probably wrong, given (a) the idiosyncrasy in the phonological shape that the putative pos-denoting template takes across different adjectives, (b) the appearance of the same templatic shapes in non-adjectives, and (c) the appearance of adjectives like Tawiil in non-pos environments. We thereby uphold the generalization that no language realizes pos overtly. We close with a brief look at nominalized forms of gradable adjectives in Arabic and offer some preliminary remarks on the broader prospects of semantic de-composition for gradable adjectives, engaging with recent work on cross-linguistic variation in the grammar of property concepts.