adverb, adverb taking the 'to' particle, noun or participle which takes 'suru'
softly; mildly; gently; politely
Describes a gentle, mild, or indirect manner of speaking, handling, or behaving. Often used when softening a request or criticism.
彼はやんわりと断った。
He gently refused.
やんわりとした口調で話す。
Speak in a soft tone.
注意するときは、やんわり言ったほうがいい。
When giving a warning, it's better to say it gently.