Correct Answer: TRADE

Solution : Given:
TRADITIONAL

Let's compare all the option words with the given word.
First option: LAID; All the letters of LAID are present in the word TRADITIONAL.
Second option: TRADE; E is not present in the word TRADITIONAL. Therefore, all the letters of TRADE are not present in the word TRADITIONAL.
Third option: RADIATION; All the letters of RADIATION are present in the word TRADITIONAL.
Fourth option: RATIONAL; All the letters of RATIONAL are present in the word TRADITIONAL.

Only TRADE cannot be formed using the letters of the word TRADITIONAL. Hence, the second option is correct.