Current Best: 13 characters
To determine if a word is a synonym, it either has to be obvious, or has to be confirmed by thesaurus.com.
The accepted answer will always be changed to adjust to the shortest answer which follows all the rules. So any answer can be bested at any point by another solver!
Here's an example incase any of you are confused;
What a beautiful, giant flower! Almost as pretty as my big tree!
Beautiful and Pretty; To look good.
Giant and Big; To be large in size.
Please note your answer will not be accepted if it ties the accepted answer!