Synonyms for weak

adjective

• deficient in magnitude; barely perceptible; lacking clarity or brightness or loudness etc
• (used of vowels or syllables) pronounced with little or no stress
• overly diluted; thin and insipid
• wanting in moral strength, courage, or will; having the attributes of man as opposed to e.g. divine beings
• lacking bodily or muscular strength or vitality
• deficient in intelligence or mental power
• deficient or lacking in some skill
• likely to fail under stress or pressure
• not having authority, political strength, or governing power
• tending downward in price
• (used of verbs) having standard (or regular) inflection
• wanting in physical strength