unwellness

As nouns the difference between sickness and unwellness

is that sickness is the quality or state of being sick or diseased; illness; disease or malady while unwellness is the state or characteristic of being unwell; a feeling of slight to moderate sickliness.

As nouns the difference between illness and unwellness

is that illness is (countable) an instance of a disease or poor health while unwellness is the state or characteristic of being unwell; a feeling of slight to moderate sickliness.

As nouns the difference between ailment and unwellness

is that ailment is something which one; a disease; sickness while unwellness is the state or characteristic of being unwell; a feeling of slight to moderate sickliness.

As nouns the difference between ill and unwellness

is that ill is (often pluralized) trouble; distress; misfortune; adversity while unwellness is the state or characteristic of being unwell; a feeling of slight to moderate sickliness.

As an adjective ill

is (label) evil; wicked (of people).

As an adverb ill

is not well; imperfectly, badly; hardly.

As nouns the difference between sickliness and unwellness

is that sickliness is the state or characteristic of weakness, incapacity, or physical distress due to poor health, especially of a chronic nature while unwellness is the state or characteristic of being unwell; a feeling of slight to moderate sickliness.

As an adjective unwell

is not well; indisposed; not in good health; somewhat ill; ailing.

As a noun unwellness is

the state or characteristic of being unwell; a feeling of slight to moderate sickliness.