When something that is awkward it is difficult to move or use because of its shape or position
e.g. 'The crates were much too heavy and awkward for one person to carry.
Thesaurus entry for this meaning of awkward not comfortable, relaxed, or confident
'He stood there looking stiff and awkward in his uniform'.
The uniform example is a good one, especially if you explain a for example a 'priest going to buy maybe a pack of condoms'. Now thats awkward.