The term PREFIX WITH MATURE is composed of two words, PRE and Mature. The word PRE is a three letter prefix that means 'BEFORE' or 'in front of'. Mature is an adjective that means 'fully developed' or 'having reached full growth'. Together, the term PREFIX WITH MATURE can be interpreted to mean 'BEFORE full development'. This phrase can be used to describe something that has not yet reached its full potential or is still in the process of maturing.