severe

adjectives

intensely or extremely bad or unpleasant in degree or quality
"severe pain"; "a severe case of flu"; "a terrible cough"; "under wicked fire from the enemy's guns"; "a wicked cough"
severe, terrible, wicked
is derived from
severeness
is derived from
severeness
is derived from
severity
very strong or vigorous
"strong winds"; "a hard left to the chin"; "a knockout punch"; "a severe blow"
hard, knockout, severe
is derived from
severeness
severely simple
"a stark interior"
austere, severe, stark, stern
is derived from
severeness
unsparing and uncompromising in discipline or judgment
"a parent severe to the pitch of hostility"- H.G.Wells; "a hefty six-footer with a rather severe mien"; "a strict disciplinarian"; "a Spartan upbringing"
severe, spartan
is derived from
severeness
is derived from
severity
causing fear or anxiety by threatening great harm
"a dangerous operation"; "a grave situation"; "a grave illness"; "grievous bodily harm"; "a serious wound"; "a serious turn of events"; "a severe case of pneumonia"; "a life-threatening disease"
dangerous, grave, grievous, life-threatening, serious, severe
is derived from
severeness
very bad in degree or extent
"a severe worldwide depression"; "the house suffered severe damage"
severe
is derived from
severeness
is derived from
severity
is similar to
having undesirable or negative qualities
"a bad report card"; "his sloppy appearance made a bad impression"; "a bad little boy"; "clothes in bad shape"; "a bad cut"; "bad luck"; "the news was very bad"; "the reviews were bad"; "the pay is bad"; "it was a bad light for reading"; "the movie was a bad choice"
bad