Choose the correct antonym of the underlined word from the options given below:

The grim look on her face was anything but encouraging.

Option 1: benign -> means gentle, kind, or harmless - the opposite of grim.

Option 2: stern -> similar to grim; means severe or strict in manner.

Option 3: grotesque -> means bizarre or distorted, which is more extreme than grim.

Option 4: appalling -> means shocking or horrifying, also more extreme than grim.

Hence, benign -> This appears to be an antonym question. "Grim" means stern, forbidding, or harsh, while "benign" means gentle, kindly, or favorable - making them opposite in meaning -> correct