If a ship or a boat is ______, it cannot be sunk.
unsinkable
sinkable
floating
float
working well and not wasting time or energy
efficiently
efficiency
efficient
effect
very good; very surprising
amazement
amazing
amaze
amazingly
happening in or relating to the deep parts of the sea
seabed
deep-sea
ocean
sea
An ______ amount is calculated by adding some amounts together and then dividing by the number of amounts
average
median
total
percentage
relating to real situations
practicing
practical
practically
practice
A ______ person, animal, thing, or activity could harm you.
endangered
dangerously
dangerous
danger
designed and made using the most recent ideas and methods
modernity
modernist
modern
modernism
very strong
powerful
power
powerfully
powered
better or more important than usual things
special
specialty
specialism
specialist
involved in or relating to a revolution
revolutions
revolting
revolutionary
revolution
______ air, land or water isn't clean
pollution
polluter
pollute
polluted
parks, toilets, transport, etc.
private
governmental
public
official
lasting for the whole of a person's life
lifelong
long
aging
lifestyle
valuable, useful, or necessary
importance
important
importantly
imported
larger, more important, or having more influence than others of the same type
mainly
manned
main
mane
belonging or relating to men or boys
male
woman
female
man
liked by many people; for or involving ordinary people
populist
population
popularity
popular
continuing for a small amount of time
short
long
little
distant
being the bottom part of something
low
lowest
slower
lower
good for your health
healthcare
healthily
health
healthy
below the surface of the sea
oversea
season
undersea
seabed
having a large distance from one end to the other
straight
winding
long
short
keeping your attention
interested
interestingly
interesting
interest
happening often or existing in large numbers
common
special
rare
unusual
connected with industry
industry
industrially
industrious
industrial
full of activity or people
busily
busy
busiest
busier
not expensive, or costing less than usual
cheaper
cheaply
cheapest
cheap
large in amount, size, or degree
grate
greatest
greater
great
not the same as someone or something else
exactly
antonym
similar
different
very hot
boiler
boil
boiling
boiled
free from any dirty marks, pollution, bacteria, etc
clean
cleaned
cleaner
cleaning