A Plain Prinia, also known as White-browed Prinia (fig.), hiding from the rain under a lotus leaf, in Bangkok. Adults of both sexes are 13.5 to 15 centimeters tall, brownish-grey to olive above, with a clear, whitish supercilium and whitish-buff underparts.

The bill is blackish, though often paler towards the base, and the legs and feet are pinkish.