| immature | (adj) characteristic of a lack of maturity, Ant. mature, Example: immature behavior |
| immature | (adj) not yet mature, Ant. mature |
| immaturely | (adv) in an immature manner, Syn. jejunely, Ant. maturely, Example: his teenage son still behaves very immaturely |
| immaturity | (n) not having reached maturity, Syn. immatureness, Ant. maturity |
| Immature | a. [ L. immaturus; pref. im- not + maturus mature, ripe. See Mature. ] |
| Immatured | a. Immature. [ 1913 Webster ] |
| Immaturely | adv. In an immature manner. Warburion. [ 1913 Webster ] |
| Immatureness | n. The state or quality of being immature; immaturity. Boyle. [ 1913 Webster ] |
| Immaturity | n. [ L. immaturitas: cf. F. immaturité. ] The state or quality of being immature or not fully developed; unripeness; incompleteness. [ 1913 Webster ] When the world has outgrown its intellectual immaturity. Caird. [ 1913 Webster ] |