y and propitious [propitious = auspicious, favorable; kindly]

lucrative and advantageous

ludicrous and detestable

lugubrious and unfortunate [lugubrious = dismal, gloomy]

lukewarm and indifferent

lull and silence

luminous and keen

lure and captivate

lurid and fiery

luscious and lasting

luster and resplendence

lusty and big-sounding

luxury and pomp

M

madness and folly

magical and secret

magnificent and luxurious

majestic and imposing

malice and revenge

malignity and spitefulness

manifold and complex

manly and powerful

manner and conduct

marvels and mysteries

massive and compact

masterly and convincing

materialistic and sordid

maternal and filial

maudlin and grotesque [maudlin = tearfully sentimental]

maxims and morals

meager and bare

mean and debasing

meaning and significance

means and materials

mechanical and monotonous

meddling and muddling

meditative and sympathetic

meek and manageable

melody and softness

memorable and glorious

menace and superciliousness [superciliousness = haughty disdain]

merciful and chivalrous

merciless and unpitying

merit and virtue

mighty and majestic

mild and virtuous

mince and temporize

minds and memories

minuteness and fidelity

mirth and joviality

misdemeanors and improprieties

misery and degradation

misrepresented and reviled

misty and indefinite

mobile and expressive

mockery and imposture

moderate and cautious

modes and methods

modest and retiring

molding and upbuilding

momentary and languid [languid = lacking energy; weak]

momentous and appalling

monopoly and injustice

monotony and indecorum

monstrous and insupportable

moody and brooding

moral and religious

morbid and irritable

motionless and commanding

motives and aims

mud and mire

muddled and incoherent

murmurs and reproaches

muscularity and morality

mutable and fleeting

mute and insensate

mutilated and disfigured

muttering and murmuring

mutual and friendly

mysterious and incomprehensible

mystic and wonderful

N

nagging and squabbling

nameless and obscure

narrow and timorous

natural and spontaneous

nauseous and disgusting

neatness and propriety

necessarily and essentially

needs and demands

nefarious and malevolent

negations and contradictions

neglect and evade

negotiate