eccentric

definition: not having a common center

example:

speech part: adjective

synonyms: nonconcentric

definition: conspicuously or grossly unconventional or unusual

example:

speech part: adjective

synonyms: bizarre freakish freaky flaky flakey gonzo off-the-wall outlandish outre

definition: a person with particular interests and/or mannerisms

example: Doc from the movie Back to the Future is an eccentric.

speech part: noun

synonyms: case

definition: a person with an unusual or odd personality

example:

speech part: noun

synonyms: flake eccentric person oddball geek