Spanish is a relatively inflected language, with a two-gender system and about fifty conjugated forms per verb, but small noun declension and limited pronominal declension. (For a detailed overview of verbs, see Spanish verbs and Spanish irregular verbs.)
As for syntax, the unmarked sentence word order is Subject Verb Object, though variations are common. Spanish is right-branching, using prepositions, and with adjectives generally coming after nouns.
Spanish is also pro-drop (allows the elision of pronouns when unnecessary) and verb-framed.