inept

not elegant or graceful in expression

• “an awkward prose style”
• “a clumsy apology”
• “his cumbersome writing style”
• “if the rumor is true, can anything be more inept than to repeat it now?”

generally incompetent and ineffectual

• “feckless attempts to repair the plumbing”
• “inept handling of the account”

revealing lack of perceptiveness or judgment or finesse

• “an inept remark”
• “it was tactless to bring up those disagreeable”