Not specific or concrete; based on ideas rather than facts.
abstract
Not harmed or injured; safe.
unscathed
Unplanned or done suddenly without preparation.
spontaneous
Related to current events or contemporary issues.
topical
Unable to produce plants; empty or lifeless.
barren
Stout or overweight in a dignified way.
portly
To become smaller or decrease gradually.
dwindle
A person who rebels or deserts a group or cause.
renegade
A person who always expects the best or looks at things positively.
optimist
A large, tightly packed crowd of people.
throng