1. Lacking sense or reason: This is the most common meaning. Something is senseless if it makes no logical sense, is illogical, or has no purpose or point.
* Example: "It's senseless to fight over such a trivial matter."
* Synonyms: Meaningless, irrational, nonsensical, absurd
2. Unconscious or unresponsive: This meaning refers to a person who is unable to feel or perceive things due to being unconscious or in a coma.
* Example: "The patient is senseless after the accident."
* Synonyms: Unconscious, comatose
3. Without feeling or emotion: This meaning describes someone who is not sensitive or empathetic to the feelings of others.
* Example: "She was so senseless to the pain she caused her friends."
* Synonyms: Heartless, callous, unfeeling
It's important to consider the context to understand the specific meaning of "senseless" in a given situation.