Question

which word could best replace mischievous without changing the meaning of the sentence? i should have known you were playing a prank on me when i spotted that mischievous grin on your face! guileless impish amorphous futile

Explanation:

"Mischievous" implies being playful in a slightly naughty way. "Impish" has a similar connotation of being playfully naughty. "Guileless" means innocent and without deceit. "Amorphous" refers to having no definite shape. "Futile" means pointless.

Answer:

B. impish