uncommunicative

Adjective: jack shit and/or gibberish comes out. endless; almost seemingly pointless chatter that instead of reducing a situation on the contrary ESCALATES it and leaves one feeling extremely childish and plain DUMB for not being able to get oneself's point across.

tongue-tied, speechless, wordless, feeble-minded, silent, soundless, dimwitted, inarticulate...

Jenny was uncommunicative with certain IMPORTANT matter from her heart, unable to express it with words the frustration left her venting for the rest of the night.

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uncommunicational

being unable to communicate via text message or facebook chat or just in general.

ugh!!! that matt is soooo uncommunicational!!!!!

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