【Amicable】 , 【neighborly】 and 【friendly】 are applied to the attitudes and actions of persons, communities, and states that have intercourse with each other and mean marked by or exhibiting goodwill or absence of antagonism.

【Amicable】 frequently implies little more than that the parties concerned are not disposed to quarrel or are at peace with each other.

• an 【amicable】 adjustment
• the sometimes 【amicable】 processes of bargaining between a federation of employers and a trade union
  —Hobson

【Neighborly】 sometimes suggests goodwill and kindliness and a disposition to live on good terms with those with whom one must associate because of their proximity.

• the only encirclement sought is the encircling bond of good old-fashioned 【neighborly】 friendship
  —Roosevelt

Very often, however, because of connotations acquired from scriptural uses of neighbor, especially in the parable of the Good Samaritan ("which now of these three . . . was neighbor unto him that fell among the thieves?") it implies the duty of helpfulness and the spirit of fellowship.

• he hath a 【neighborly】 charity in him
  —Shak.
• he in a very 【neighborly】 manner admonished me
  —Swift

【Friendly】 is more positive in its implications of cordiality than either of the others and often suggests greater warmth of feeling.

• a 【friendly】 nod
• a 【friendly】 call
• their relations are 【friendly】
• a 【friendly】 correspondence as neighbors and old acquaintances
  —Franklin