1 bitter cold

2 severe winter

1 solemn

2 grave

3 serious

4 earnest

5 severe

1 grave

2 serious

3 severe

4 critical

1 dignity

2 sanctity

3 honor

4 majesty

1 cautious

2 prudent

1 to be strict with oneself (idiom)

2 to demand a lot of oneself

1 to be severe with oneself and lenient with others (idiom)

1 to punish severely (idiom)

1 to fit tightly (idiom)

2 to join seamlessly

3 to fit snugly

1 cautious and timid (idiom); prudent

2 careful