clumsily
The mayor is being criticised for the way he ham-handedly managed the response to the storm.
They ham-handedly made the announcement and only succeeded in generating a line of questions from the confused audience.

SMART Vocabulary: related words and phrases

Inability and awkwardness
accident-prone
adorkable
all thumbsidiom
amateurish
amateurishly
fumbling
fumblingly
functional illiteracy
gauche
gauchely
inexpertly
jack-of-all-trades
jack-of-all-trades, master of noneidiom
klutzy
like a bull in a china shopidiom
uncoordinated
uneducable
unenterprising
unequal
ungainly