| INDUMENTUMS | • INDUMENTUM n. (Latin) a total body covering of hair, fur or feathers. | 
| MOUNTAINOUS | • mountainous adj. Having many mountains; characterized by mountains; of the nature of a mountain; rough (terrain); rocky. • mountainous adj. Resembling a mountain, especially in size; huge; towering.
 • mountainous adj. (Figurative, of a problem or task) Very difficult.
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| MULTIUNIONS | Sorry, definition not available. | 
| MUNDUNGUSES | • MUNDUNGUS n. (archaic) a foul-smelling tobacco, also MUNDUNGO. | 
| NONLUMINOUS | • nonluminous adj. Not luminous. • non-luminous adj. Not capable of producing light, but possibly capable of reflecting light from another source.
 • NONLUMINOUS adj. not luminous.
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| SUBMUNITION | • submunition n. Any part of a weapon (typically a bomb or missile) that separates from a parent munition before or during employment. • SUBMUNITION n. any of a group of smaller weapons carried as a warhead by a missile or projectile and expelled as the carrier approaches its target.
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| SURMOUNTING | • surmounting v. Present participle of surmount. • surmounting n. The act by which something is surmounted, or overcome.
 • surmounting n. A decorative feature that sits on top of something.
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| UNAMUSINGLY | • unamusingly adv. In an unamusing manner. • UNAMUSING adv. not amusing.
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| UNANIMOUSLY | • unanimously adv. In a unanimous manner; without objection. • UNANIMOUS adv. of one mind.
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| UNHUMANISED | • unhumanised v. Simple past tense and past participle of unhumanise. • UNHUMANISE v. to render inhuman or barbarous, also UNHUMANIZE.
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| UNHUMANISES | • unhumanises v. Third-person singular simple present indicative form of unhumanise. • UNHUMANISE v. to render inhuman or barbarous, also UNHUMANIZE.
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| UNHUMANIZES | • unhumanizes v. Third-person singular simple present indicative form of unhumanize. • UNHUMANIZE v. to render inhuman or barbarous, also UNHUMANISE.
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| UNIMMUNISED | • unimmunised adj. Alternative form of unimmunized. • UNIMMUNISED adj. not immunised, also UNIMMUNIZED.
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| UNMASCULINE | • unmasculine adj. Not masculine; not characteristic of, typical of, or appropriate for a man. • UNMASCULINE adj. not masculine.
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| UNMUZZLINGS | • UNMUZZLING n. the act of removing a muzzle. | 
| UNPRESUMING | • unpresuming adj. Not presumptuous. • UNPRESUMING adj. modest, not presuming.
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| UNRULIMENTS | • UNRULIMENT n. (Spenser) unruliness. |