Definition of sickish in US English:

sickish

adjective

  • See sick

    • ‘The pain is so bad that I gag, a sickish feeling in my sinuses.’
    • ‘I have to now face the fact that I, who am rarely sick, have been sickish for a week now, mostly with coughing phlegmy runny nose-and-eyes ick.’
    • ‘Rising gradually to her feet, those sickish green eyes met the Captain's level, immediately locking on to those specks of electric blue.’
    • ‘Because of ionization, the choking air filled with a sickish sweet ‘electric smell.’’
    • ‘My sore hands shake, a hot, sickish dread rises inside my chest.’