cumbersome

These enzymes worked but were difficult to reengineer for new DNA targets, making them slow and cumbersome to use.

That beats the cumbersome process of monitoring them to make sure they’re healthy enough to be released.

Moving out of the White House is a cumbersome endeavor for all presidents.

County was cumbersome and time consuming and relied on spreadsheets, phone calls and daily emails to track inventory and get people shelter.

Anna also told the BBC it's heavy and cumbersome, meaning Wren can only self propel it a few metres before she needs help.