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petty

petty /ˈpɛti/ adjective
pettier; pettiest
petty
/ˈpɛti/
adjective
pettier; pettiest
Britannica Dictionary definition of PETTY
[also more petty; most petty]
: not very important or serious
: relating to things that are not very important or serious
: committing crimes that are not very serious
: treating people harshly and unfairly because of things that are not very important

— pettiness

/ˈpɛtinəs/ noun [noncount]