weak adj.
VERBS appear, be, feel, look, seem, sound | become, go | remain | leave sb, make sb When the spasm passed, it left him weak and sweating.
ADV. decidedly, extremely, fundamentally, particularly, very | a bit, comparatively, fairly, pretty, quite, rather, relatively | curiously He complained of feeling curiously weak and faint. | surprisingly | dangerously | lamentably | suddenly Her legs felt suddenly weak. | inherently The judge decided the evidence was inherently weak and inconsistent. | economically, mentally, militarily, physically, politically
PREP. at She's rather weak at maths. | from She was weak from shock. | in He's weak in English. | on The essay was a bit weak on detail. | with He was weak with hunger.
PHRASES weak at the knees His sudden smile made her go weak at the knees.
You can also check other dicts: weak (English, 中文解释 ), wordnet sense, Collins Definition