impede

block

Solid mass, or impede

• hinderObstruct or delay
• hamperObstruct or clothes basket
• obstructBlock or hinder passage

thwart · stymie · inhibit · encumber · handicap · constrain · trammel · shackle · clog · choke

forestall

Prevent by prior action

• precludeMake impossible in advance
• preemptAct to prevent
• obviatePrevent by anticipation

avert · intercept · check · halt · stop · suppress · prohibit · quash · deter · dissuade

wall

Vertical enclosing structure

• fenceBoundary structure between properties
• barricadeObstacle blocking a path
• gateHinged barrier in fence

checkpoint · blockade · cordon · perimeter · fortification · rampart · bulwark · palisade · moat · obstruction

slow

Lacking in speed

• retardSlow or hinder
• stallEnclosed compartment or delay
• dragResistance through fluid

dawdle · lag · tarry · detain · postpone · defer · setback · holdup · snag · hitch

oppose

Act against something

• counteractNullify by opposing force
• defyResist or challenge openly
• withstandRemain intact despite pressure

rebuff · repel · challenge · confront · combat · contravene · interfere · obstruct · frustrate · foil

• blockingblock, barrier, barricade, blockade, obstruction
• burdensburden, load, onus, obligations, weight
• obstructblock, halt, stop, hinder, obstruct
• restrainhold back, suppress, hold in, keep in, keep down
• Troublesproblem, trouble, issue, setback, snag
• disruptdisrupt, disturb, upset, disorder, disorganize