obstructed

/əb-ˈstrəkt/

Latin obstructus, past participle of obstruere, from ob- in the way + struere to build, heap up

verb

  1. to block or close up by an obstacle

  2. to hinder from passage, action, or operation : impede

  3. to cut off from sight

A piece of food obstructed his airway.

hinder impede obstruct block mean to interfere with the activity or progress of. hinder stresses causing harmful or annoying delay or interference with progress. impede implies making forward progress difficult by clogging, hampering, or fettering.