1.
Informal speech or behaviour is relaxed and friendly rather than serious, very correct, or official.
She is refreshingly ~...
? formal
ADJ: usu v-link ADJ
~ly
She was always there at half past eight, chatting ~ly to the children.
ADV: ADV after v
~ity
He was overwhelmed by their friendly ~ity.
N-UNCOUNT
2.
An ~ situation is one which is relaxed and friendly and not very serious or official.
The house has an ~ atmosphere.
? formal
ADJ
3.
Informal clothes are casual and suitable for wearing when you are relaxing, but not on formal occasions.
For lunch, dress is ~.
= casual
? formal
ADJ
~ly
Everyone dressed ~ly in shorts or jeans.
ADV
4.
You use ~ to describe something that is done unofficially or casually without planning.
The two leaders will retire to Camp David for ~ discussions.
ADJ: usu ADJ n
~ly
He began ~ly to handle Ted’s tax affairs for him.
ADV