This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

n. Someone who supports welfare, especially of animals.

n. A supporter of the politics or principles of the welfare state.

adj. Pertaining to support for the politics or principles of the welfare state.

adj. of or relating to a welfare state

"If the recognized values all concern individual welfare, then the theory of value can be called welfarist (Sen 1979)."

liberal