Synonyms of the word

unpromised

• adj. Not promised.

unattached

• adj. Not married or involved in a romantic relationship.
• adj. Not attached, not connected with or belonging to a particular group or organization.

uncommitted

• adj. Not inclined toward either side in a matter under dispute.
• adj. Not bound or pledged to a cause, party etc.
• adj. (computing, of an update to a database etc.) Not yet written to disk and logged.

unengaged

• adj. Not engaged.

unpledged

• adj. Not pledged; not committed.
• adj. (finance) Not used as collateral.