KanjiJLPT N1
Uneasiness

fear, uneasiness, anxiety, concern, expectation, consideration

Mnemonic

A tiger gives you a slow, deliberate stare from the tall grass. Its eyes lock onto yours, unblinking. It hasn't pounced — yet. That frozen moment, where the tiger gives no sign of its next move, is pure uneasiness — dread of what may come.
Additional thoughts
The tiger hasn't attacked, which is exactly what makes it worse. It's the uncertain pause — the give of attention without resolution — that breeds anxiety. Picture those glowing eyes in the grass, waiting.
Quick recall
A tiger gives you an unreadable stare from the grass, filling you with uneasiness about what comes next.

Details

The keyword for 虞 is uneasiness. This kanji conveys a sense of anxiety, apprehension, or fear about something that may happen in the future. It refers to a worried concern or dread over potential danger or misfortune, often used in formal or literary contexts to express the possibility of an undesirable outcome. In classical usage, it also carried the nuance of careful forethought or vigilance against possible harm.
On'yomi
Kun'yomi
おそれ、おもんぱか.る、はか.る、うれ.える、あざむ.く、あやま.る、のぞ.む、たの.しむ