Synonyms of the word

barrier

• n. A structure that bars passage.
• n. An obstacle or impediment.
• n. A boundary or limit.
• n. (grammar) A node (in government and binding theory) said to intervene between other nodes A and B if it…
• n. (physiology) A separation between two areas of the body where specialized cells allow the entry of certain…

impediment

• n. A hindrance; that which impedes or hinders progress.
• n. (chiefly in the plural) Baggage, especially that of an army; impedimenta.

impedimenta

• n. Equipment intended for an activity that serves as more of a hindrance than a help, especially military…
• n. plural of impedimentum.

mechanism

• n. (within a machine or machinery) any mechanical means for the conversion or control of motion, or the transmission…
• n. Any combination of cams, gears, links, belts, chains and logical mechanical elements.
• n. A group of objects or parts that interact together. (as in Political machine).
• n. A mental, physical, or chemical process.
• n. (philosophy) The theory that all natural phenomena can be explained by physical causes.

obstacle

• n. Something that impedes, stands in the way of, or holds up progress.

obstructer

• n. Someone who obstructs, agent noun of obstruct.

obstruction

• n. The act of obstructing, or state of being obstructed.
• n. That which obstructs or impedes; an obstacle; an impediment; a hindrance.
• n. The condition of having the natural powers obstructed in their usual course; the arrest of the vital functions;…

obstructor

• n. Alternative form of obstructer.

roadblock

• n. Something that blocks or obstructs a road.
• n. An obstacle or impediment.
• v. (colloquial) To prevent, hinder.