The phrase "a weak subject" is correct and usable in written English.
It can be used in contexts discussing topics, themes, or individuals that lack strength, clarity, or impact.
Example: "In the debate, the candidate struggled to defend his position because he was arguing a weak subject."
Alternatives: "a feeble topic" or "a poor subject".
As war approached, Livonia had a weak administration subject to internal rivalries, lacked any powerful defences or outside support, and was surrounded by monarchies pursuing expansionist policies.
As many of the pre-service teachers teaching primary science do not have a background in science, science educators and school administrators grapple with the problem of weak subject matter knowledge.
A repeated correlation analysis between MEL serum concentration and illuminance levels showed a weak within-subject correlation (r=-0.097 r=-0.09752), and a stronger, but still non-significant between-subject correlation (r = 0.438, P = 0.152).
Torque was then expressed in percent of predicted values in order to demonstrate the feasibility of measurements with the device in a small sample of weak subjects with neuromuscular disease.
The technology back-end of the program, which resembles the control center of a corporate IT department, analyzes and measures the students' skill levels on a daily basis, reconfiguring their "playlists" (thanks, iTunes) to identify the weak subjects or skills they need to focus on every morning when they come to the classroom.
In classical computing schemes, a binary bit is represented by the bistable spin polarization of a single electron confined in a quantum dot and subjected to a weak magnetic field.
Science and math are my weak subjects, so I came on my own to help me.
Italian vocational training policies are effective in strengthening the human capital of the weak subjects.
In another experiment, to further test their results, the researchers used Photoshop to switch the bodies of the strong and weak subjects.
