Amateur
Part of speech: adjective
Definition: Non-professional. Created, done, or populated by amateurs or non-professionals. Showing a lack of professionalism, experience or talent.
Part of speech: noun
Definition: A lover of something. A person attached to a particular pursuit, study, or science as to music or painting; esp. one who cultivates any study or art, from taste or attachment, without pursuing it professionally. Someone who is unqualified or insufficiently skillful.
Mature
Part of speech: adjective
Definition: Fully developed; grown up in terms of physical appearance, behaviour or thinking; ripe.Profound; careful.
Part of speech: verb
Definition: To become mature; to ripen.To gain experience or wisdom with age.To reach the date when payment is due