A common metaphor for someone who is sneaky is "a snake in the grass." This metaphor implies that the person is deceptive and untrustworthy, much like a snake hiding in the grass waiting to strike. The comparison highlights the idea of someone being sly and cunning in their actions, often with harmful intentions.
he was a sneaky jackrabbit.
He is sneaky like a silent mouse
"It was a sneaky sort of kiss: a fleeting thought lost on the tip of the tongue."
he is a fox
One of the oldest is "sneaky like a fox". You could say "sneaky as the smartest con man".
She is a criminal, she is a raccoon
Old is like an owl but with even better intelligence. this is not a metaphor but a simile. A metaphor for old in a sentence would be
your heart is a black hole. your heart is the the sun.
he is a fox
A sharp wit is a metaphor for a clever person.
"He is a shining star in our company" is an example of an indirect metaphor, where the person is compared to a star without using "like" or "as" to make the comparison explicit.
yes, but it can also be a verb ex. dont be so sneaky (sneaky is a verb in that sentence, cuz the person is doing that) the sneaky fox decapitates a chicken (sneaky is an adjective because it describes what kind of fox)