As adjectives the difference between disgusting and irksome

is that disgusting is causing disgust; repulsive; distasteful while irksome is disagreeable or troublesome by reason of long continuance or repetition; bothersome; annoying; irritating; wearisome; tedious.

As a verb disgusting

is present participle of lang=en.

As adjectives the difference between biting and afflictive

is that biting is causing a stinging sensation while afflictive is that causes physical or mental pain.

As a verb biting

is present participle of lang=en.

As a noun biting

is the action of the verb to bite.

Unstable is a related term of wandering.

As adjectives the difference between unstable and wandering

is that unstable is having a strong tendency to change while wandering is which wanders; travelling from place to place.

As a noun wandering is

travelling with no preset route; roaming.

As a verb wandering is

.

Preeminent is a related term of august.

As an adjective preeminent

is pre-eminent.

As a proper noun august is

the eighth month of the gregorian calendar, following july and preceding september abbreviation: aug' or ' or august can be .

As adjectives the difference between ancient and customary

is that ancient is having lasted from a remote period; having been of long duration; of great age; very old while customary is agreeing with, or established by, custom; established by common usage; conventional; habitual.

As nouns the difference between ancient and customary

is that ancient is a person who is very old while customary is a book containing laws and usages, or customs; a custumal.

Injured is a related term of wretched.

As a verb injured

is (injure).

As an adjective wretched is

very miserable; sunk in, or accompanied by, deep affliction or distress, as from want, anxiety, or grief; calamitous; woeful; very afflicting.

As adjectives the difference between adverse and severe

is that adverse is unfavorable; antagonistic in purpose or effect; hostile; actively opposing one's interests or wishes; contrary to one's welfare; acting against; working in an opposing direction while severe is very bad or intense.

Distress is a related term of cavil.

As nouns the difference between distress and cavil

is that distress is (cause of) discomfort while cavil is a petty or trivial objection or criticism.

As verbs the difference between distress and cavil

is that distress is to cause strain or anxiety to someone while cavil is to criticise for petty or frivolous reasons.

Incurable is a synonym of irrecoverable.

As adjectives the difference between incurable and irrecoverable

is that incurable is of an illness, condition, etc, that is unable to be cured; healless while irrecoverable is not recoverable or admitting of recovery; incapable of being recovered: as, an irrecoverable debt.

As a noun incurable

is one who cannot be cured.

Problematic is a synonym of unknown.

As adjectives the difference between problematic and unknown

is that problematic is posing a problem; difficult to overcome or solve while unknown is not known; unidentified; not well known.

As nouns the difference between problematic and unknown

is that problematic is (chiefly|in the plural) a problem or difficulty in a particular field of study while unknown is (algebra) a variable (usually x'', ''y'' or ''z ) whose value is to be found.