10. (interj.)whatever (used to indicate indifference to a state of affairs, situation, previous statement, etc.)
Etymology: (1300–50)
Definition of 'whatever'
Princeton's WordNet
1. (adj)any(a), whatever, whatsoever one or some or every or all without specification "give me any peaches you don't want"; "not any milk is left"; "any child would know that"; "pick any card"; "any day now"; "cars can be rented at almost any airport"; "at twilight or any other time"; "beyond any doubt"; "need any help we can get"; "give me whatever peaches you don't want"; "no milk whatsoever is left"
1. (determiner)whatever indicates anything or everything They took whatever food they could find.
2. whatever indicates it does not matter which thing is chosen, happens, etc. Whatever time you can come is fine.
3. (pronoun)whatever indicates anything or everything Eat whatever you want.
4. whatever indicates it does not matter which thing is chosen, happens, etc. Whatever we do, it can't change the past.
5. whatever indicates you do not know what sth is He mentioned a "wildcard," whatever that is.
6. whatever emphasizes shock or anger in a question Whatever did you think you were doing?
7. (interjection)whatever indicates you do not have a preference "Do you want tea or coffee?" "Whatever. Either is fine."
8. whatever whatever! used as a reply to show you are not interested "I'm going without you, then." "Whatever!"
Definition of 'whatever'
Webster Dictionary
1. whatever anything soever which; the thing or things of any kind; being this or that; of one nature or another; one thing or another; anything that may be; all that; the whole that; all particulars that; -- used both substantively and adjectively