Acting or carried out in secret or by stealth; clandestine, furtive, surreptitious. Now archaic.

Thief-like, stealthy, underhand.

Stealthy. Obsolete.

Marked or characterized by secrecy or stealth; working, moving, etc., in a stealthy or underhand manner. Also of places: Quiet, secret.

Full of wiles or plots; lying in wait or seeking to entrap or ensnare; proceeding or operating secretly or subtly so as not to excite suspicion…

= clancular, adj.

That creeps or sneaks by hedges; clandestine, base; cf. hedge, n. compounds 2.

Of, pertaining to, or characteristic of a thief or thieves; thief-like; furtive, stealthy.

That sneaks; moving, walking, acting, etc., in a furtive or slinking manner. Also transferred.

transferred and figurative in various senses: e.g. straining upwards, ambitious; eagerly expectant; tripping, dancing; silent, stealthy.

Sneaking, skulking; mean-spirited. Obsolete.

Working or acting in a secret or unapparent manner; also literal, working beneath.

Of movement or action: Taking place by stealth; calculated to elude observation; proceeding by imperceptible degrees; furtive. Of persons or…

Working imperceptibly or secretly; insidious.

transferred. Acting by stealth or secretly; †taking by stealth, appropriating secretly (obsolete); stealthy, crafty, sly.

Secret, private; clandestine, underhand.

Stealthy. Obsolete. rare.

= insidious, adj.

Winding, twisting; figurative working or advancing insidiously or tortuously.

figurative. Existing or working out of sight or secretly; clandestine, hidden.

= clancular, adj.

Secret; clandestine.

Slinking, furtive, submissive.

That slinks; moving, walking, etc. in a furtive or stealthy manner; marked or characterized by stealth or secrecy.

Stealing in; entering stealthily.

Like or resembling a thief.

Of a person, etc.: Stealthy, sly.