slier

enUK

sli·er

S0473700 (slī′ər)adj.A comparative of sly.

slier

(ˈslaɪə) adj a comparative of sly

sly

(slaɪ)

adj. sly•er sli•er, sly•est sli•est, adj. 1. cunning or wily. 2. stealthy; surreptitious. 3. mischievous or roguish: sly humor. n. 4. on the sly, secretly; furtively. Idiom. [1175–1225; Middle English sly, sley < Old Norse slŒgr sly, cunning] sly′ly, adv. sly′ness, n.