experienced:
immature,
unable,
inept,
ignorant,
unknowledgeable,
unfamiliar,
unseasoned,
unskillful,
incompetent,
unskilled,
untalented, amateur,
unsophisticated,
incapable,
untrained,
inexperienced,
green.
professional:
unintelligent,
stupid,
clumsy,
inefficient,
rookie,
unprofessional.
X
