a. [f. ZIGZAG sb. or v. + -ED.] Having a zigzag form or marking.
1774. Goldsm., Nat. Hist. (1824), III. 62. The body oblong; the line running down the side zigzagged towards the tail.
1781. Warton, Hist. Oxf. (1783), 4. The zigzagged semicircle of this arch.
1829. Anniversary, 88. [The house] presents sundry crowfooted, alias zigzagged, gables.
1841. Penny Cycl., XXI. 86/1. On the external barbs of the caudal feathers are two zigzagged bands.
Hence Zigzaggedness.
1893. Strand Mag., VI. 693. It is in accordance with the general zig-zaggedness of things that the most popular residents in the fish-house are the birds.