A pendent dry sprinkler assembly comprising: an outer structure assembly having an inlet fitting defining an inlet end and an outlet frame defining a distal end, the outlet structure assembly having an internal passageway and an outlet defining a sprinkler axis (A-A) and a nominal K-factor, the outlet frame includes a pair of spaced apart arms disposed about the outlet to define a first plane that includes the sprinkler axis (A-A) and define a second plane that includes and is perpendicular to the first plane such that one arm is disposed on each side of the second plane; an inner structure assembly disposed within the internal passageway; and a deflector having a central portion centered about the sprinkler axis (A-A) and a plurality of tines each extending radially from the central portion to a terminal portion, the terminal portion of at least two tines (112a, 112b, 112c, 112d) of the plurality of times being angled relative to the central portion such that the terminal portion is axially further away from the outlet frame than the central portion, characterised in that: the plurality of tines include symmetrical tines and asymmetrical tines (112a, 112b, 112c, 112d) that present a non-planar surface to the outlet, and edges of the terminal portion of the plurality of tines approximate a non-circular perimeter, the symmetrical tines including a pair of diametrically opposed T-shaped tines bisected by the first plane and a second pair of diametrically opposed T-shaped tines bisected by the second plane, and the asymmetrical tines (112c, 112d) being disposed circumferentially between the first and second pair of diametrically opposed T-shaped tines (112a, 112b). an outer structure assembly having an inlet fitting defining an inlet end and an outlet frame defining a distal end, the outlet structure assembly having an internal passageway and an outlet defining a sprinkler axis (A-A) and a nominal K-factor, the outlet frame includes a pair of spaced apart arms disposed about the outlet to define a first plane that includes the sprinkler axis (A-A) and define a second plane that includes and is perpendicular to the first plane such that one arm is disposed on each side of the second plane; an inner structure assembly disposed within the internal passageway; and a deflector having a central portion centered about the sprinkler axis (A-A) and a plurality of tines each extending radially from the central portion to a terminal portion, the terminal portion of at least two tines (112a, 112b, 112c, 112d) of the plurality of times being angled relative to the central portion such that the terminal portion is axially further away from the outlet frame than the central portion, characterised in that: the plurality of tines include symmetrical tines and asymmetrical tines (112a, 112b, 112c, 112d) that present a non-planar surface to the outlet, and edges of the terminal portion of the plurality of tines approximate a non-circular perimeter, the symmetrical tines including a pair of diametrically opposed T-shaped tines bisected by the first plane and a second pair of diametrically opposed T-shaped tines bisected by the second plane, and the asymmetrical tines (112c, 112d) being disposed circumferentially between the first and second pair of diametrically opposed T-shaped tines (112a, 112b). the plurality of tines include symmetrical tines and asymmetrical tines (112a, 112b, 112c, 112d) that present a non-planar surface to the outlet, and edges of the terminal portion of the plurality of tines approximate a non-circular perimeter, the symmetrical tines including a pair of diametrically opposed T-shaped tines bisected by the first plane and a second pair of diametrically opposed T-shaped tines bisected by the second plane, and the asymmetrical tines (112c, 112d) being disposed circumferentially between the first and second pair of diametrically opposed T-shaped tines (112a, 112b).