good as gold

Adjective

Meaning

(of an asset, especially New Zealand) Of high and enduring value.
Synonym: goldlike

(especially UK, of a person, simile) Very well-behaved (especially of a child); very good-hearted (especially of an adult).

Source: en.wiktionary.org

Antonyms

abusive pretended disobedient ill-mannered put on bad-mannered

Examples

I think the word of the United States has been as good as gold in its international dealings and its agreements. Condoleezza Rice

The finest compliment you can pay a man is that his word was as good as gold. Evel Knievel

Close letter words and terms

good argument good article good arts good as new good as one's word good as wheat in the bin