What is a synonym for the word open?

Here are some synonyms for "open", depending on the context:

General:

* Accessible

* Available

* Free

* Unclosed

* Unsealed

For doors, windows, etc.:

* Ajar

* Unlatched

* Unlocked

* Unfastened

* Unbolted

For spaces:

* Vast

* Expansive

* Unconfined

* Unrestricted

* Wide

For attitudes and minds:

* Receptive

* Tolerant

* Liberal

* Welcoming

* Frank

For communication:

* Candid

* Forthright

* Honest

* Direct

* Transparent

For opportunities:

* Available

* Possible

* Feasible

* Accessible

* Open to negotiation

The best synonym to use will depend on the specific context of your sentence.