Acceptable (adjective)

1. Able to be accepted or tolerated; not objectionable.
2. Adequate or satisfactory.

Origin:

From middle english acceptabil, borrowed from latin acceptabilis ("worthy of being accepted"), from acceptare ("to receive, accept") + -abilis ("-able").

Examples:

1. The proposal was deemed acceptable by the committee.
2. The terms of the contract are acceptable to both parties.
3. His behavior was not acceptable in the workplace.
4. His explanation was acceptable, but not entirely convincing.
5. The company's performance was deemed acceptable by the board of directors.