No, annihilates is a verb, as in he/she/it annihilates. 'Annihilated' could be used as an adjective, as in 'The Annihilated Self', or 'annihilating', as in 'the annihilating effects of space travel'.
depends on how it's used.
It depends
The noun forms of the verb to annihilate are annihilator, annihilation, and the gerund, annihilating.
Cautious IS an adjective. An adjective is an action!
The word "it" is not an adjective (it is a pronoun). A word is an adjective if it modifies (defines, characterizes) a noun or pronoun. The big tent - big is an adjective He is tall - tall is an adjective This key - this (while arguably called a determiner) is a demonstrative adjective
Severe is an adjective.
Celebration of Annihilation was created in 1996.
Total Annihilation happened in 1997.
"Annihilation" by Jeff VanderMeer has for around 195 pages.
Annihilation Earth was created on 2009-12-12.
Annihilation of the Wicked was created on 2005-05-23.
Annihilation of Civilization was created on 1989-04-03.
Annihilation - novel - was created on 2004-06-01.
Science of Annihilation was created on 2009-05-22.
Time for Annihilation was created on 2010-08-31.
Total Annihilation - album - was created in 1994.
Annihilation Principle was created on -19-09-08.
Gateways to Annihilation was created on 2000-10-17.