For texture:
* Hard
* Firm
* Rigid
* Tough
* Rough
For sound:
* Loud
* Sharp
* Harsh
* Blaring
For light:
* Bright
* Strong
* Harsh
For emotions:
* Strong
* Tough
* Hard
* Unfeeling
For character:
* Strong
* Tough
* Firm
* Uncompromising
For color:
* Bold
* Vibrant
* Strong
Please provide more context if you're looking for a specific antonym.