abrasive

syn.chafing,grating,rasping,erosive

                                        Ant.(adj)smooth,polished,satiny,oily,unctuous

acclimate

syn.accustom,learn the ropes

v. to adapt to a new climate, environment or situation

chagrin

syn. vexation,mortification;v; abash,mortify

ant. jubilation,exultation,triumph;v.exult,delight

irritation or humiliation caused disappointment or frustration;v. to cause such a feeling

complacent

syn. smug, pleased with oneself

ant. discontented, chagrined

adj.) self-satisfied;overly content

concur

syn. agree, assent, ratify,sanction

ant. disagree, differ,part company

v. to express agreement, approve

defamation

syn. vilification, calumny,mudslinging

ant. salute, tribute, testimonial, praise

v. slander or libel

explicate

syn. clarify,elucidate,untangle,spell out

ant. confuse,bewilder,obscure,obfuscate

v. to make plain or clear, explain, to interpret