maladroit: (adjective) clumsy; uncoordinated
fractious: (adjective) unruly, likely to cause disturbance or trouble
flagitious: (adjective) shamefully wicked; a particularly heinous event
meretricious: (adjective) attracting attention by vulgar, trashy means; false or insincere
perspicuous: (adjective) clear and easy to understand, generally in regard to speech or writing
pusillanimous: (adjective) cowardly, profoundly lacking in noble qualities of courage and valor
grandeur: (noun) the quality of being grand or maginficent
apophenia: (noun) finding meaning or patterns where none exist
Thanks to sirgrumpygills for this submission!
sesquipedalian: (adjective) using long words