3. (1) unaccented, light, weak -- (used of vowels or syllables; pronounced with little or no stress; "a syllable that ends in a short vowel is a light syllable"; "a weak stress on the second syllable")
4. (1) fallible, frail, imperfect, weak -- (having the attributes of man as opposed to e.g. divine beings; "I'm only a fallible human"; "frail humanity")
5. weak -- (tending downward in price; "a weak market for oil stocks")
6. weak -- (deficient or lacking in some skill; "he's weak in spelling")
7. decrepit, debile, feeble, infirm, rickety, sapless, weak, weakly -- (lacking physical strength or vitality; "a feeble old woman"; "her body looked sapless")
8. weak -- ((used of verbs) having standard (or regular) inflection)
9. weak -- (not having authority, political strength, or governing power; "a weak president")
10. faint, weak -- (deficient in magnitude; barely perceptible; lacking clarity or brightness or loudness etc; "a faint outline"; "the wan sun cast faint shadows"; "the faint light of a distant candle"; "weak colors"; "a faint hissing sound"; "a faint aroma"; "a weak pulse")
11. weak -- (likely to fail under stress or pressure; "the weak link in the chain")
12. weak -- (deficient in intelligence or mental power; "a weak mind")