The Collaborative International Dictionary
Sickish \Sick"ish\, a.
Somewhat sick or diseased.
Somewhat sickening; as, a sickish taste. [1913 Webster] -- Sick"ish*ly, adv. -- Sick"ish*ness, n.
Douglas Harper's Etymology Dictionary
1580s, from sick (adj.) + -ish.
Wiktionary
a. Somewhat sick, but not seriously so.
WordNet
Usage examples of "sickish".
It was plainly unhealthy, perhaps because of the dampness and fungous growth in the cellar, the general sickish smell, the draughts of the hallways, or the quality of the well and pump water.
Unless she wanted more of the sickish sarsaparilla, she would be forced to drink whiskey.
Her sickish sweet perfume was a nauseating contrast to the horrible reek of the streets.
The sickish smell grew stronger by the moment and he fancied he could feel it penetrating to the rest of his nose, into the brain, subtly eating away at his humanity and his resolution.
Valdez glanced at him, a sickish expression on his face that turned instantly to rage.
Lady Imeyne knelt at the foot of the bed next to her medicine casket, busy with one of her foul-smelling poultices, and there was another smell in the room, sickish and so strong it overpowered the mustard and leek smell of the poultice.
There was genuine love between them, too, not of the effusive, sickish sort, but that love that enobles and glorifies.
His sickish lungs felt inflated, engorged with a healing arctic air of unimagined freedom.
He became aware of a sweet, sickish smell, that mingled with the sharp tang of the salt air.
It was plainly unhealthy, perhaps because of the dampness and fungous growth in the cellar, the general sickish smell, the draughts of the hallways, or the quality of the well and pump water.
That field suddenly dropped to nothingness, and Bordman had the momentary sickish dizziness that flicked-off gravity always produces.