Some of the core mechanics feel clunky, but playing with a good team can be fun.
From the kentucky.com
He checked in on dusty, clunky desktop computers that ran outdated Web browsers.
From the nytimes.com
Although we fear how it would play now, given how clunky even these sequels are.
From the metro.co.uk
This said, using the bundled remote to navigate was at best a clunky experience.
From the nzherald.co.nz
That's not to mention the clunky pixel-generated horrors of the prequel trilogy.
From the guardian.co.uk
Traditional CRM systems are complex, clunky and built for full-time salespeople.
From the techcrunch.com
You can either bend the human around clunky technology, or bend the technology.
From the economist.com
The whole process felt too clunky, and I kept worrying I would break the hinge.
From the sacbee.com
A few clunky musical numbers will break up the hurried speeches and lame jokes.
From the fresnobee.com
More examples
Gawky: lacking grace in movement or posture; "a gawky lad with long ungainly legs"; "clumsy fingers"; "what an ungainly creature a giraffe is"; "heaved his unwieldy figure out of his chair"
Making a clunking sound
Ungainly; awkward; inelegant; cumbersome
(clunkily) In a clunky manner
(clunkiness) The state or property of being clunky