aching
agonizing
arduous
awful
biting
burning
caustic
difficult
dire
disagreeable
distasteful
distressing
dreadful
excruciating
extreme
extremely bad
grievous
hard
harrowing
hurtful
hurting
inflamed
irritated
laborious
piercing
raw
saddening
sensitive
severe
sharp
smarting
sore
stinging
tedious
tender
terrible
throbbing
tormenting
troublesome
trying
uncomfortable
unpleasant
vexatious
"Dys-" is a prefix that means bad, difficult, or painful. It is commonly used in words like "dysfunctional" or "dysphoria" to indicate an abnormal or difficult condition.
Other words meaning error include mistake, goof, and mess-up.
Painless.
'MEANING' in other words can be the 'vocabulary' of a word or the 'essence' of the word as to what the word precisely means. OR meaning is the meaning of meaning what you just said meaning
Dys-
Difficult and painful menstruation.
Linking words that are similar in meaning.
exactly
substance
although
The words are called synonyms.
Difficult or painful discharge of urine.