Danish adjectives are declined according to the gender and number of the nouns to which they apply. Each regular adjective has a base form, used for common gender nouns, a t-form used with neuter gender nouns, and an e-form used with plural nouns and in definite descriptions. In many cases, the t- and e- forms are created simply by attaching the letters to the end of the common gender form, but not always. Frequently the final consonant is doubled before adding -e, and occasionally the preceding vowel is affected in a manner similar to the plural of en bog being bøger or that of et barn being børn.

Example: En dejlig kage (a lovely cake) Et dejligt hus (a lovely house) Tre dejlige kager (three lovely cakes) Den dejlige kage (the lovely cake) Det dejlige hus (the lovely house)

One notable exception is lille, which uses the same forms for both singular genders and becomes små for plurals.