deceptively

In a deceptive manner; misleadingly.

• 2010, Australian Law Dictionarydeceptively similar, Oxford Reference A trade mark is deceptively similar to another trade mark if it so nearly resembles that other trade mark that it is likely to deceive or cause confusion

Actually but not apparently.

• We've rounded up 26 recipes that sound, look and taste difficult but are actually really easy. ... try one of these deceptively easy but wildly impressive recipes.
• what seems like a complex situation is actually deceptively simple

Apparently but not actually.

• The trial court found that the crewman who had spread the sawdust over the oil had made the situation more dangerous by creating a deceptively safe condition, resulting in a "trap" and an unseaworthy condition.
• Mathematicians have long pondered a deceptively easy puzzle about the reach of a goat tied to a fence. Until now, they’ve only found approximate answers.