(humorous) Quite expensive. / (from misunderstanding) Satisfactorily cheap.

(mathematics) An interval in the real line which contains one of its endpoints but not the other one: i.e., it either contains its supremum or its infimum but not both.

plural of open half space

plural of half sister-in-law

plural of half brother-in-law

(idiomatic, of a person) pessimistic

(idiomatic, of a person) optimistic

In languages that distinguish vowel length, a vowel whose length is between a short vowel and a long vowel.

(slang) Partly drunk, or, possibly in meiosis, very drunk.

(idiomatic, of a person, plan, theory, etc.) Shrewd but flawed by overthinking or excessive complexity, with a resulting tendency to be unreliable or unsuccessful.