Dilettantly

It was a foolhardy, ill-conceived, dilettantly prepared defensive; it was a typical adventure.

Source: wiktionary

Revenge is taken for the activities of snipers; one starts shooting at all those who flee and all those who appear “suspicious”, one tries to obtain information by dilettantly executed pressure on the population.

Source: wiktionary

Thus, with the help of computer technology the mathematical thinking in models experiences an unexpected renaissance what is proved by the large number of software packages - that are however quite often used dilettantly.

Source: wiktionary

[…]they have been arbitrarily created (and dilettantly[…]

Source: wiktionary