In Icelandic grammar, demonstrative adjectives are words that describe, qualify, and point to a particular noun (person, place, thing, or idea). They answer the question ‘which one?’ and include words equivalent to English ‘this’, ‘that’, ‘these’, and ‘those’. The specific demonstrative adjectives used in Icelandic depend on the gender (masculine, feminine, neutral) and number (singular, plural) of the noun they are describing.