Having the characteristics or qualities of a dilettante; superficial, amateurish, or pursued without serious commitment.
From dilettante plus the -ish suffix, which typically means 'having the quality of' or 'somewhat like.' The -ish suffix is a Germanic element that transforms nouns into descriptive adjectives.
The -ish suffix is incredibly productive in English—you can add it to almost anything, from 'girlish' to 'dilettanteish,' to mean 'kind of acting like that thing!' It's English's way of saying 'sort of.'
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