Answer:

outside

Answer	Crossword Clue
OUTSIDE	Prison's antithesis, with "the"
OUTSIDE	Alfresco
OUTSIDE	Remote, as chances go

OUTSIDE	In the open air
OUTSIDE	Slim, as chances go
OUTSIDE	Unlikely, as a chance
OUTSIDE	Not in-house
OUTSIDE	Under the stars, say
OUTSIDE	Quite unlikely
OUTSIDE	Off the plate
OUTSIDE	Exterior

OUTSIDE	Furthest limit.
OUTSIDE	Edge of home plate farthest from the batter.
OUTSIDE	The utmost limit.
OUTSIDE	Absolute limit (with "the").
OUTSIDE	Kind of chance
OUTSIDE	Barely possible, as a chance
OUTSIDE	External
OUTSIDE	Mere; slight

OUTSIDE	Diamond call
OUTSIDE	Like some pitches
OUTSIDE	Partner for high
OUTSIDE	Not on staff
OUTSIDE	Wide of the plate
OUTSIDE	Flimsy, as chances go
OUTSIDE	Al fresco
OUTSIDE	Plate umpire's call