The antonym of alone is ....
together
The antonym of small is...
large
The antonym of doubtfully is ...
certainly
The antonym of careless is...
careful
The antonym of safe is...
dangerous
The antonym of worse is...
better
The antonym of sadly is...
happily
The antonym of different is...
same
The antonym of quiet is...
loud
The antonym of wonderful is...
awful