Dictionary.net

characterized by firm and unwavering conviction; "a foursquare refusal to yield"

with firmness and conviction; without compromise; "he stood foursquare for religious liberty and toleration"- C.G.Bowers; "dealt straightforwardly with all issues"

characterized by firm and unwavering conviction; "a foursquare refusal to yield"

with firmness and conviction; without compromise; "he stood foursquare for religious liberty and toleration"- C.G.Bowers; "dealt straightforwardly with all issues"

Having four sides and four equal angles.

Having four sides and four equal angles.

Having four equal sides; upright and honest; in a square form.