Something trifling, or of no consequence or importance.
A trivial remark especially in the term sweet nothings.
A nobody (insignificant person).
Not any thing; no thing.
An absence of anything, including empty space, brightness, darkness, matter, or a vacuum.
In a serious manner; seriously.
Committed.
Without humor or expression of happiness; grave in manner or disposition
Really intending what is said (or planned, etc); in earnest; not jocular or deceiving
Important; weighty; not insignificant