frostily
🇺🇸
/ˈfrɔːstɪli/
🇬🇧
/ˈfrɒstɪli/
in a cold and unfriendly manner
‘No, thank you,’ she said frostily, her voice as cold as ice.
‘いいえ、結構です,’と彼女は冷たく言い、声は氷のように冷たかった。