Define Uncommunicative Meaning

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

ugh!!! that matt is soooo uncommunicational!!!!!
By Gwenore