Mannish
Part of speech: adjective
Definition: Of, pertaining to, characteristic of, or suitable for a man
Masculine
Part of speech: adjective
Definition: pertaining to male humans, men:# manly; having the qualities associated with men; suitable to, or characteristic of, a man; not feminine or effeminate; virile (only in this sense, does the adjective compare)#* Henry Hallam — That lady, after her husband's death, held the reins with a masculine energy.#* Thomas Fuller — A masculine church.# male; having male biology, not female; of the male sex (rare)#* Geoffrey Chaucer — Thy masculine children, that is to say, thy sons.# belonging to men; appropriated to, or used by, men#: “John”, “Paul”, and “Harry” are masculine names.in many inflected languages:# being of the masculine class, or grammatical gender, and inflected in that manner#: The noun Student is masculine in German.# being inflected in agreement with the masculine#: German uses the masculine of the definite article, der, with Student.
Example sentence: The masculine spirit is under assault. It's obvious.