grog·gy 
/ˈgrɑ:gi/ adjective
grog·gi·er; grog·gi·est /ˈgrɑ:gi/ adjective [also more groggy; most groggy] : not able to think or move normally because of being tired, sick, etc.
▪ I'm still a little groggy from my nap. ▪ The medicine sometimes makes patients groggy.
▪ I'm still a little groggy from my nap. ▪ The medicine sometimes makes patients groggy.
— grog·gi·ly /ˈgrɑ:gəli/ adverb
▪ He got out of bed and staggered groggily to the bathroom.
/ˈgrɑ:gəli/ adverb ▪ He got out of bed and staggered groggily to the bathroom.
— grog·gi·ness /ˈgrɑ:ginəs/ noun [noncount]
▪ Patients may experience some grogginess after taking the medicine.
/ˈgrɑ:ginəs/ noun [noncount] ▪ Patients may experience some grogginess after taking the medicine.
