Exhibiting childlike simplicity and credulity(adjective)
WordNet. Princeton University. 2010.
Use "round-eyed" in a sentence
"My Keepon, a round-eyed robot that looks like two oranges fused together, coos when touched on the head and bobs and twists rhythmically to music."
"The little one all rosy and dimpled (just as she had pictured him!) looking around in round-eyed wonder."
"Chinese wealth is on the Pacific Coast — and the wealthy families and military leaders of that area have far stronger reasons to cast their lot with the round-eyed foreign devils that to let Beijing confiscate their wealth to fill the rice bowls of a billion or so starving peasants in central and northern China."