When the increment or decrement operator is placed before the operand (or to the operand's left), the operator is being used in prefix mode. Postfix mode on the other hand is when the increment or decrement operator is placed after the operand (or to the oper and's right) .
Uh, I think you mean antonym.
Anyways, here are some antonyms.
Careless, Certain, Foolish, Inattentive, Incautious
Y=In(x)-5
hopefully it’s right :)
