pronoun. Everything or anything that: Do whatever you please. pronoun. What amount that; the whole of what: Whatever is left over is yours. pronoun. No matter what: Whatever happens, we'll meet here tonight. pronoun. Which thing or things; what: Whatever does he mean? pronoun. Informal What remains and need not be mentioned; what have you: Please bring something to the party-pretzels, crackers, whatever. adj. Of any number or kind; any: Whatever requests you make will be granted. adj. All of; the whole of: She applied whatever strength she had left to the task. adj. Of any kind at all: No campers whatever may use the lake before noon. interjection. Informal Used to indicate indifference to or scorn for something, such as a remark or suggestion: We're having pizza tonight.-Whatever. I don't care.