To complain about sth
To express my displeasure
A bit smaller
Marginally, fractionally, slightly smaller
Much/a lot bigger
Considerably/vastly, substantially, significantly larger
More and more diverse
Increasingly diverse
Very different
Completely, entirely, strikingly, enormously different
A big change
Radical, enormously, significant change
A big mountain
Large, enormously mountain
Lots of children
Many/a large number of (countable)
A large amount of (uncountable)
Important resources
Significant resources
Poor country
Under-developed/developing country