How do you spell Thievish

Available Definitions:
1)  a. - Given to stealing; addicted to theft; as, a thievish boy, a thievish magpie.
2)  a. - Like a thief; acting by stealth; sly; secret.
3)  a. - Partaking of the nature of theft; accomplished by stealing; dishonest; as, a thievish practice.