What is the meaning of Lazy?

Unwilling to do work or make an effort; disinclined to exertion.

Causing or characterised by idleness; relaxed or leisurely.

Showing a lack of effort or care.

Sluggish; slow-moving.

Lax:

1. Droopy.

   Droopy.

   Of an eye, squinting because of a weakness of the eye muscles.

   Turned so that (the letter) is horizontal instead of vertical.

   Employing lazy evaluation; not calculating results until they are immediately required.

   Wicked; vicious.

   To laze, act in a lazy manner.

   A lazy person.

   Sloth (animal).

   nominative/accusative plural of laz

   Source: wiktionary.org