The opposite would be unfriendly. Other possible adjectives are hostile, antagonistic, inhospitable, or inimical.
Ex: His friendliness was overwhelming.
her friendliness was contagious. ;P
An agreement that is characterized by friendliness is often called an amicable agreement.
The apparent friendliness of the natives was quite disconcerting, considering the tales of cannibalism we'd previously heard. The physics professor is not known for his friendliness.
Yes it is an abstract noun
The word friendly uses a I when it forms the noun, spelled friendliness.
It depends on what you are writing, you could say.. 'Jesus had a nature of friendliness.' 'She opened her arms of friendliness' 'Not did she only have a heart of gold, she spoke words of friendliness..' There are many different ways of using friendliness, you should use a thesaurus and use others words that relate to friendliness, as it is quite a hard word to put it sentences.
Friendliness.
yea
socialbillity and friendliness
C. change hostility to friendliness
It evolves from friendliness