(1):

(superl.) Uttered with a thin tone; - the opposite of broad; as, the slender vowels long e and i.

(2):

(superl.) Small or narrow in proportion to the length or the height; not thick; slim; as, a slender stem or stalk of a plant.

(3):

(superl.) Moderate; trivial; inconsiderable; slight; as, a man of slender intelligence.

(4):

(superl.) Small; inadequate; meager; pitiful; as, slender means of support; a slender pittance.

(5):

(superl.) Spare; abstemious; frugal; as, a slender diet.

(6):

(superl.) Weak; feeble; not strong; slight; as, slender hope; a slender constitution.