1.Definition: beyond or deviating from the usual or expected
"The peculiar aromatic odor of cloves"
2.Definition: characteristic of one only; distinctive or special
"The peculiar character of the Government of the U.S."
3.Definition: markedly different from the usual
"A peculiar hobby of stuffing and mounting bats", "A man...feels it a peculiar insult to be taunted with cowardice by a woman"
4.Definition: unique or specific to a person or thing or category
"A peculiar bond of sympathy between them", "An expression peculiar to Canadians", "Rights peculiar to the rich"