L
labor and drudgery
lame and impotent
lamentable and depressing
languid and indifferent
large and opulent
lassitude and languor [languor = dreamy, lazy mood]
latent and lifeless
latitude and scope
laudable and deserving
laughable and grotesque
lavish and wasteful
lawlessness and violence
laxity and forbearance
laziness and profligacy
leafage and fruitage
learning and austerity
legends and traditions
legitimate and logical
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