unalloyed
🇺🇸
/ˌʌnəˈlɔɪd/
🇬🇧
/ˌʌnəˈlɔɪd/
Pure and not mixed with anything else, especially not mixed with negative qualities.
The children experienced unalloyed happiness when they saw the clown at the party.
子供たちはパーティーで道化師を見たときに純粋な幸せを感じました。