1. (a.) Of or pertaining to structure; affecting structure; as, a structural error.

2. (a.) of or pertaining to organic structure; as, a structural element or cell; the structural peculiarities of an animal or a plant.

adjectival adverbial anatomic architectonic architectural attributive building conjunctive constructional copulative correct descriptive edificial formal functional glossematic glottochronological grammatic graphemic housing intransitive lexicographic lexicological lexicostatistical lingual linguistic linking metalinguistic morphological morphophonemic nominal organic organismal participial philological phonemic phonetic phonological postpositional prepositional pronominal psycholinguistic semantic substantive substructural superstructural syntactic tagmemic tectonic textural transitive verbal