Antonym of 'Somatic' is -

• Somatic (adjective)

English Meaning: Part of or relating to the body of an organism. 
Bangla Meaning: দৈহিক; শারীরিক।

Synonyms: Bodily, (কায়িক), Physical (শরীর সম্বন্ধিয়), Fleshly (ইন্দ্রিয়গত), Personal (ব্যক্তি সম্বন্ধীয়)।  
Antonyms: Bodiless (অশরীরী, দেহহীন), Formless (আকৃতিহীন), Spiritual(আধ্যাত্মিক), Emotional (আবেগময়)। 

Other Forms: Somatically (adverb)

Example Sentence: 
1. Somatic symptoms like headaches and fatigue generally resolve themselves quickly.
2. A somatic disorder that was once thought to be “all in the patient's head.

Source: Website Lecture.