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adjective
dour - A stern, harsh, or gloomy attitude or facial expression
foolhardy - Ignoring obvious dangers
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absentminded - Forgetful or inattentive, often because of being lost in thought.
flaky - Crazy or eccentric
noun
Eyesore - Something that is very ugly or unpleasant to look at.
verb
grumble - Complain or protest about something in a bad-tempered but typically muted way
contentious - Likely to cause disagreement or argument
stagnate - Cease developing; become inactive or dull
frenetic - Fast and energetic in a rather wild and uncontrolled way
brutal - Savagely violent
trivial - Of little value or importance
Autocratic - Demanding total obedience and control, often in a domineering way.