Antonyms of adj symptomless

1 sense of symptomless

Sense 1
asymptomatic, symptomless -- (having no symptoms of illness or disease)

INDIRECT (VIA well) -> ill, sick -- (affected by an impairment of normal physical or mental function; "ill from the monotony of his suffering")

Similarity of adj symptomless

1 sense of symptomless

Sense 1
asymptomatic, symptomless -- (having no symptoms of illness or disease)
       => well (vs. ill) -- (in good health especially after having suffered illness or injury; "appears to be entirely well"; "the wound is nearly well"; "a well man"; "I think I'm well; at least I feel well")