Causing or tending to cause slipping or sliding, often due to being smooth, wet, or oily. The floor was slippery after the rain, making it difficult to walk without falling.
Difficult to hold firmly or stand on because it is smooth, wet, or slimy. The fish was so slippery that it slipped right out of my hands.
Unstable or unreliable, often used to describe a person or situation that is not trustworthy or is evasive. He is known for being a slippery politician, always avoiding direct answers.
Hard to define, understand, or keep hold of mentally; elusive or ambiguous. The meaning of art can be slippery, changing with cultural context and personal interpretation.