"polite" in the adjective sense
showing regard for others in manners, speech, behavior, etc.
2. civilized, civilised, cultivated, cultured, genteel, polite
marked by refinement in taste and manners
"a genteel old lady"
3. civil, polite
not rude marked by satisfactory (or especially minimal) adherence to social usages and sufficient but not noteworthy consideration for others
"even if he didn't like them he should have been civil"- W.S. Maugham
Source: WordNet® (An amazing lexical database of English)
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