Came and went unnoticed Crossword Clue

 The answer to the crossword clue "Came and went unnoticed" is SLIP. It is a verb that means to move quietly or stealthily. It can also mean to pass unnoticed or unobserved.

The word "slip" can be used in a variety of contexts, but it is often used in crossword clues to describe someone who comes and goes without attracting attention. For example, a celebrity who slips into a party unnoticed or a thief who slips out of a store without being caught.

Here are some other words that can be used in crossword clues to describe someone who comes and goes unnoticed:

Stealth

Slink

Slither

Creep

Wade

The specific word that is used in a crossword clue will depend on the context and the author's style.