Nouns

(n)small letter, lowercase, lower-case letter, minusculethe characters that were once kept in bottom half of a compositor's type case
(n)minusculea small cursive script developed from uncial between the 7th and 9th centuries and used in medieval manuscripts

Adjectives

(a)minuscule, minuscularof or relating to a small cursive script developed from uncial; 7th to 9th centuries
(s)little, minuscule, smalllowercase“little a”, “small a”, “e.e.cummings's poetry is written all in minuscule letters”
(s)minuscule, minisculeextremely small“a minuscule kitchen”, “a minuscule amount of rain fell”