adverb, adverb taking the 'to' particle
bluntly; frankly; without reserve
Describes speaking in a direct, often tactless way that may hurt feelings. Often used with verbs like 言う or 話す.
彼はズケズケとものを言う。
He speaks bluntly.
ズケズケ言うけど、その服は似合わないよ。
I'll be frank with you, but that outfit doesn't suit you.