jealously
I looked envyingly at his horse.
Other children gathered around, envyingly, to look at his new phone.
She envyingly watched her little brother opening his birthday presents.
He looked envyingly at his opponent's triumphant face.
Her friends envyingly wished that they had such beautiful dark hair.

SMART Vocabulary: related words and phrases

Envy and jealousy
all right
be green with envyidiom
covet
covetable
covetous
covetously
disgustingly
enviable
enviably
envious
enviously
envy
green
greenly
grudge
jealous
jealously
possessive
possessively
threatened