not aged

budding inexperienced new youthful

adolescent blooming blossoming crude developing fledgling green growing infant inferior junior juvenile little modern newborn punk raw recent tender tenderfoot

boyish boylike burgeoning callow childish childlike early fresh girlish girllike half-grown ignorant newish pubescent puerile undeveloped undisciplined unfinished unfledged unlearned unpracticed unripe unseasoned untried unversed vernal

experienced old

adult healthy mature older sophisticated