mixture, medley, variety, and diversification
modesty, fineness, sensitiveness, and fastidiousness
money, position, power, and consequence
mood, temper, humor, and caprice
motive, impulse, incentive, and intimation
mysterious, dark, secret, and enigmatical
N
narrow, limited, selfish, and bigoted
necessary, expedient, indispensable, and unavoidable
necessity, emergency, exigency, and crisis [exigency = urgent situation]