1.  narrowing(n = noun.attribute) - an instance of becoming narrow;
is a kind of configuration, conformation, contour, form, shape
has particulars: coarctation, taper, bottleneck, chokepoint, constriction
Derived form verb narrow₄

2.  narrowing(n = noun.process) - a decrease in width;
is a kind of decrease, decrement
Antonym: widening

3.  narrowing(n = noun.act) - the act of making something narrower;
is a kind of change of shape
Antonym: widening
Derived form verb narrow₁

1.  narrowing(s = adj.all) tapered, tapering - becoming gradually narrower; "long tapering fingers"; "trousers with tapered legs"

2.  narrowing(s = adj.all) constricting, constrictive - (of circumstances) tending to constrict freedom;

1.  The act of contracting, or of making or becoming less in breadth or extent. [1913 Webster]

2.  The part of a stocking which is narrowed. [1913 Webster]

N  narrowness, thinness, narrowness, closeness, exility, exiguity, line, hair's breadth, finger's breadth, strip, streak, vein, monolayer, epitaxial deposition, thinness, tenuity, emaciation, macilency, marcor, shaving, slip, thread paper, skeleton, shadow, anatomy, spindleshanks, lantern jaws, mere skin and bone, middle constriction, stricture, neck, waist, isthmus, wasp, hourglass, ridge, ghaut, ghat, pass, ravine, narrowing, coarctation, angustation, tapering, contraction, narrow, close, slender, thin, fine, thread-like, finespun, gossamer, paper-thin, taper, slim, slight-made, scant, scanty, spare, delicate, incapacious, contracted, unexpanded &c (expand), slender as a thread, emaciated, lean, meager, gaunt, macilent, lank, lanky, weedy, skinny, scrawny slinky, starved, starveling, herring gutted, worn to a shadow, lean as a rake, thin as a lath, thin as a whipping post, thin as a wafer, hatchet-faced, lantern-jawed, attenuated, shriveled, extenuated, tabid, marcid, barebone, rawboned, monomolecular.