Frequency: The word is one of the 3000 most common words in English.
If something is ~, there is enough of it or it is good enough to be used or accepted.
One in four people worldwide are without ~ homes...
The old methods weren’t ~ to meet current needs...
? in~
ADJ: oft ADJ to-inf, ADJ for n
~ly
Many students are not ~ly prepared for higher education...
I speak the language ~ly.
ADV: ADV with v