sickening

sickening /ˈsɪkənɪŋ/ adjective
sickening
/ˈsɪkənɪŋ/
adjective
Britannica Dictionary definition of SICKENING
[more sickening; most sickening]
1 
: causing you to feel sick
2 
: causing a strong feeling of disgust
3 
of a sound : causing great concern especially because someone or something may have been badly harmed

— sickeningly

adverb