weak

adjective

1. wanting in physical strength"a weak pillar"
2. overly diluted; thin and insipid"washy coffee"
3. (used of vowels or syllables) pronounced with little or no stress"a syllable that ends in a short vowel is a light syllable"
4. wanting in moral strength, courage, or will; having the attributes of man as opposed to e.g. divine beings"I'm only a fallible human"
5. tending downward in price"a weak market for oil stocks"
6. deficient or lacking in some skill"he's weak in spelling"
7. lacking bodily or muscular strength or vitality"a feeble old woman"
8. (used of verbs) having standard (or regular) inflection
9. not having authority, political strength, or governing power"a weak president"
10. deficient in magnitude; barely perceptible; lacking clarity or brightness or loudness etc"a faint outline"
11. likely to fail under stress or pressure"the weak link in the chain"
12. deficient in intelligence or mental power"a weak mind"