1. (adjective) about average; acceptable

• adequate
• fair to middling
• tolerable

1. (adjective) able to be passed or traversed or crossed

• climbable
• surmountable
• navigable
• negotiable
• travelable
• traversable

2. (adjective) about average; acceptable

• satisfactory

1. (adjective) about average; acceptable

• adequacy
• adequateness

1. (adjective) able to be passed or traversed or crossed

• impassable
• unpassable