Change the word "humor" in the following sentence to an appropriate adjective.
The relationship lacked humor.
The relationship lacked humor can be changed to : The relationship lacked humor, which would result in following sentence- The relationship lacked humorous.
Complete the following task based on the instruction and optional input provided.### Instruction:
Change the word "humor" in the following sentence to an appropriate adjective.

### Input:
The relationship lacked humor.

### Output:
The relationship lacked humor can be changed to : The relationship lacked humor, which would result in following sentence- The relationship lacked humorous.