valuable

valuable is an   Adverb

Definition:

[1] Having value or worth; possessing qualities which are useful and esteemed; precious; costly; as, a valuable horse; valuable land; a valuable cargo.

[2] Worthy; estimable; deserving esteem; as, a valuable friend; a valuable companion. Valuable consideration (Law), an equivalent or compensation having value given for a thing purchased, as money, marriage, services, etc. Blackstone. Bouvier.

Synonyms: