Used attributively to mean 'being followed or shadowed'; derived from the past participle of the verb 'tail'.
Definitionen
Followed or shadowed by someone who is keeping one under surveillance. The agent realised he was tailed all the way from the embassy.
Used attributively to describe something that possesses a tail, usually in compound adjectives (e.g., long-tailed, short-tailed).
Definitionen
Having a tail (usually used in combination with a modifier). The long-tailed macaque is common in Southeast Asian forests.