leisure and tranquillity
lengthy and diffuse
lenient and sympathetic
lethargy and sloth
levity and gaiety
liberal and ample
liberty and freedom
license and laxity
likely and plausible
limited and abbreviated
listless and inert
literal and exact
literary and artistic
lithe and sinewy
lively and poignant
loathsome and abject
lofty and sonorous [sonorous = producing a full, rich sound; impressive speech]
logical and consistent
loquacity and exuberance [loquacity = very talkative.]
loss and deterioration
loud and passionate
loving and reverential
low and groveling
loyal and devoted
lucidity and vividness
lucky 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