Outer
Vine's Expository Dictionary of NT Words [1]
the comparative degree of exo, "without," is used of the "outer" darkness, Matthew 8:12; 22:13; 25:30 .
Webster's Dictionary [2]
(1): ( a.) Being on the outside; external; farthest or farther from the interior, from a given station, or from any space or position regarded as a center or starting place; - opposed to inner; as, the outer wall; the outer court or gate; the outer stump in cricket; the outer world.
(2): ( n.) The part of a target which is beyond the circles surrounding the bull's-eye.
(3): ( n.) A shot which strikes the outer of a target.
(4): ( v.) One who puts out, ousts, or expels; also, an ouster; dispossession.
King James Dictionary [3]
OUT'ER, a. comp. of out. Being on the outside external opposed to inner as the outer wall the outer part of a thing the outer court or gate.
International Standard Bible Encyclopedia [4]
out´ẽr : This adjective is used 12 times by Ezekiel of the outside court of the temple. In Matthew we find it 3 times ( Matthew 8:12; Matthew 22:13; Matthew 25:30 ) in "outer darkness" (τὸ σκότος τὸ ἐξώτερον , tó skótos tó exṓteron ), which typifies the utter darkness of the doom of the lost.