Synonyms for Dilettantish:

adj.

amateurish (adjective)
unskillful, dilettante, nonprofessional, unskilled.

n.

amateurish, unprofessional, unskillful, ability, unskilled, nonprofessional. dilettantish (noun)
dilettante, superficial, dilettanteish.

Other synonyms:

unprofessional, amateurish. unskillful, unskilled. Other relevant words:
dilettante, unprofessional, unskillful, amateurish, unskilled, nonprofessional.