As clean as a whistle and Unblemished

Unblemished and as clean as a whistle are semantically related. In some cases you can use "Unblemished" instead an adjective phrase "As clean as a whistle".

Unblemished adjective - Being entirely without fault or flaw.

As clean as a whistle and unblemished are semantically related. Sometimes you can use "As clean as a whistle" instead an adjective "Unblemished".