Definitions of lax:

• adjective:   not taut or rigid; not stretched or held tight

  Example: "A lax rope"

• adjective:   pronounced with muscles relatively relaxed (e.g., the vowel sound in `bet')
• adjective:   emptying easily or excessively
• adjective:   lacking in rigor or strictness

  Example: "Such lax and slipshod ways are no longer acceptable"

• adjective:   tolerant or lenient

  Example: "Procedures are lax and discipline is weak"

• adjective:   lacking in strength or firmness or resilience

  Example: "Took his lax hand in hers"

• name:  A surname (rare: 1 in 100000 families; popularity rank in the U.S.: #11506)