is similar to
usable or operative or practiced in all kinds of weather
"a good all-weather road"; "all-weather flying"
is similar to
(especially of funds) not earmarked; available for use as needed
"discretionary funds"; "discretionary income"
is similar to
accessible to all
"open season"; "an open economy"
is similar to
(of rooms or buildings) having large rooms with few dividing partitions
is similar to
without fixed limits or restrictions
"an open-ended discussion"
see also
able to act at will; not hampered; not under compulsion or restraint
"free enterprise"; "a free port"; "a free country"; "I have an hour free"; "free will"; "free of racism"; "feel free to stay as long as you wish"; "a free choice"