Dilettantely

The meal was a silent one, neither eating, but dilettantely sipping the tea, and shortly both arose.

Source: wiktionary

It was played with moderate success 20 years ago by Edwin Booth, although presented dilettantely off and on many years preceding.

Source: wiktionary

For four generations the men had been educated to a profession which was more or less dilettantely pursued, while a sufficient income from herds and horses made life a series of gracious gestures.

Source: wiktionary

I must dilettantely raise the curtain.

Source: wiktionary