timid
US /ˈtɪm.ɪd/
UK /ˈtɪm.ɪd/

1.
tímido, miedoso, apocado
showing a lack of courage or confidence; easily frightened
:
•
The timid child hid behind her mother's skirt.
La niña tímida se escondió detrás de la falda de su madre.
•
He was too timid to ask her to dance.
Era demasiado tímido para invitarla a bailar.