A na-adjective meaning uncertain, vague, or indefinite; used to describe unclear memories, plans, or statements.
彼の説明はあやふやで、結論が出なかった。
His explanation was vague, and no conclusion was reached.
約束の時間をあやふやに言われて困った。
I was troubled because the appointment time was given vaguely.
記憶があやふやなので、もう一度確認する。
Because my memory is uncertain, I'll check again.