Obstructed impeding total flow in a pipe, etc.(adjective)
Past tense and past participle of to block.(verb)
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Use "blocked" in a sentence
"From today, brands can request to have their name blocked from use with the new suffix, which goes live next year."
"But more seriously, I think times when a story begins to bog down and I feel "blocked" is most often due to something intrinsically wrong with the scene or character or point of view I'm working on."
"You spend four or so years in "blocked" college time, serene in the knowledge that nothing will change (short of failure, which is of the catastrophic/sublime mode)."