narrowness, meanness, humbleness
陋 centers on being physically cramped or morally small: narrowness of space, meanness of character, or humbleness of station. The three given meanings all point to a lack of breadth or generosity.
陋 combines ⻖ (mound, hill) with a phonetic component that also suggests something low or cramped. The exact historical development of the right side is uncertain, but the overall character likely expressed narrowness or lowliness.
The left side ⻖ is a mound or hill, and the right side looks like a cramped, enclosed space. Picture a narrow alley between hills where only humble, mean-spirited people would live.
For ロウ, imagine a low, narrow tunnel where you have to row a boat through: row -> ロウ, and the cramped space reflects the kanji's meaning of narrowness and humbleness.
low rank; wickedness; vulgarity
stubbornly sticking to old ways; dislike of new things; narrow-mindedness
obstinate; stubborn; hard-headed; pigheaded; incapable of making sound judgements because of a narrow, inflexible and obstinate mentality
stubbornly sticking to old ways; narrow-mindedly rejecting other people's views
narrowness; meanness; humbleness; lowliness
mean; base; nasty
cramped home; one's humble abode; hovel; pigsty; cottage; squalid hut
narrow, dirty backstreet
bad habit; evil custom; harmful practice
narrow-mindedness
obstinate; wrong-headed; bigoted
stubborn and mean; obstinate and bigoted