negative
Geiger counter
Wilson chamber
X-ray spectrograph
X-ray spectrometer
abjure
adversary
adversative
adverse
adversive
advocate
against the grain
against the tide
against the wind
agree to disagree
alien
allege in support
alpha pulse analyzer
ambo
answer
antagonistic
antagonize
anti
antipathetic
antipodal
antipode
antipodean
antipodes
antipole
antithesis
antithetic
antithetical
antonym
antonymous
argue for
ascender
assert
assert the contrary
at cross-purposes
at daggers
at daggers drawn
at issue
at odds
at opposite extremes
at variance
at war with
athwart
atom counter
atom-tagger
contra
counter tenor
Biff
act
clout
individual
lick
mortal
move
person
piece of leather
poke
punch
register
reply
respond
slug
somebody
someone
soul
countered
countering
counters
bar
bench
block
board
box
cabinet
card
chair
clock
data
desk
frame
machine
screen
shelf
shop
table
tray
encounter