VERBS
appear, be, feel, look, seem, sound | become, go | remain
leave sb, make sb
After working in the garden all morning, the heat made her weak and dizzy.
ADV
decidedly, extremely, fundamentally, particularly, very | a bit, comparatively, fairly, pretty, quite, rather, relatively
curiously
After the long illness, she felt curiously weak whenever she tried to climb the stairs.
surprisingly | dangerously | lamentably
suddenly
The patient's voice grew suddenly weak after the long surgery.
inherently
The argument for closing the library was inherently weak because most people used it regularly.
economically, mentally, militarily, physically, politically
PREP
at
My brother has always been weak at sports, so he prefers to spend time reading instead.
from
After the long hike, he felt weak from exhaustion and needed to rest.
in
My daughter needs extra tutoring because she's weak in mathematics.
on
The new restaurant has great atmosphere but their menu is quite weak on vegetarian options.
with
After running the marathon, the athlete's legs felt weak with exhaustion.
PHRASES
weak at the knees
When she saw the surprise party, she felt weak at the knees and had to sit down.