peculiar (Adjective) — Beyond or deviating from the usual or expected. ex. "the peculiar aromatic odour of cloves"
peculiar (Adjective) — Unique or specific to a person or thing or category. ex. "a peculiar bond of sympathy between them" ex. "an expression peculiar to Canadians" ex. "rights peculiar to the rich"
peculiar (Adjective) — Markedly different from the usual. ex. "a peculiar hobby of stuffing and mounting bats" ex. "a man...feels it a peculiar insult to be taunted with cowardice by a woman"
peculiar (Adjective) — Characteristic of one only; distinctive or special. ex. "the peculiar character of the Government of the U.S."