knowing the ins outs (verb) know the ropes: understand the particulars of a situation
Sinonime: bad-tempered, blunt, breviloquent, brief, brusque, curt, direct, gruff, impolite,
inconsiderate,
irascible, offhand, rude,
sharp, short-spoken, short-tempered, snappy, snippety, snippy,
straight, terse, testy,
thoughtless, unceremonious, uncivil, ungracious
Antonime: courteous,
kind,
polite