abhorrent vs. repulsive
antediluvial vs. antediluvian
assaultive vs. attacking
apposable vs. opposable
alternate vs. replacement
alternate vs. jump
alternate vs. understudy
agaze vs. staring
atomistic vs. atomistical
abroach vs. broached
aching vs. achy
ache vs. aching
agonised vs. agonized
agonising vs. agonizing
agonizing vs. excruciating
agonizing vs. harrowing
agonizing vs. torturing
agonizing vs. torturous
agonizing vs. torturesome
ariled vs. arillate
aphyllous vs. leafless
aligning vs. positioning
approaching vs. forthcoming
approaching vs. coming
approach vs. approaching
ain vs. own
admittable vs. admittible
atheistic vs. unbelieving
atheist vs. atheistic
atheistical vs. unbelieving
atheist vs. atheistical
abiding vs. unfailing
ageless vs. perpetual
aeonian vs. perpetual
aeonian vs. eonian
appeasable vs. conciliable
apetalous vs. petalless
affirmable vs. assertable
applicative vs. applicatory
acanthoid vs. acanthous
acanthoid vs. spinous
acuate vs. sharp
almighty vs. omnipotent
acerb vs. bitter
acerbic vs. bitter
acrid vs. bitter
acrid vs. pungent
apolitical vs. unpolitical
afflictive vs. sore
amused vs. diverted
amused vs. entertained
annoyed vs. roiled
annoyed vs. vexed
accomplishable vs. manageable
achievable vs. manageable
advancing vs. forward
awol vs. truant
arable vs. cultivable
arable vs. cultivatable
arable vs. tillable
atavistic vs. throwback
auxiliary vs. supplementary
aide vs. auxiliary
adumbrative vs. foreshadowing
adumbrative vs. prefigurative
amateur vs. unpaid
amateur vs. unskilled
apocalyptic vs. apocalyptical
apocalyptic vs. revelatory
amateurish vs. unskilled
adulterate vs. debased
adulterate vs. dilute
adulterated vs. debased
abuzz vs. buzzing
agitating vs. agitative
agitative vs. provoking
antifertility vs. prophylactic
aimless vs. floating
arrogant vs. chesty
affinal vs. affine
agnate vs. paternal
agnate vs. patrikin
agnate vs. patrisib
agnatic vs. paternal
akin vs. natural
akin vs. kindred
asymmetrical vs. crooked
asymmetric vs. asymmetrical
agrestic vs. rustic
aerated vs. charged
aperiodic vs. nonperiodic
allegoric vs. allegorical
aware vs. mindful
aware vs. cognizant
aware vs. cognisant
answering vs. respondent
amnesiac vs. amnesic
amnesic vs. amnestic
awed vs. awestruck
awed vs. awestricken
aweless vs. disrespectful
aweless vs. awless
awless vs. disrespectful
annular vs. ringed
annulate vs. ringed
annulated vs. ringed
aspheric vs. aspherical
arrhythmic vs. arrhythmical
arrhythmic vs. jerky
affluent vs. flush
affluent vs. feeder
allantoid vs. botuliform
agrarian vs. agricultural
agrarian vs. farming
arcadian vs. bucolic
arcadian vs. pastoral
antithetic vs. antithetical
aforementioned vs. aforesaid
aforesaid vs. said
angular vs. angulate
aseptic vs. sterile
adulterant vs. adulterating
adulterant vs. adulterator
ablutionary vs. cleansing
airheaded vs. silly
ascendable vs. climbable
ascendible vs. climbable
arch vs. pixilated
arch vs. condescending
arch vs. patronizing
arch vs. patronising
arch vs. archway
arch vs. curve
alluring vs. beguiling
asexual vs. nonsexual
agamic vs. agamous
agamic vs. agamogenetic
agamic vs. apomictic
agamic vs. parthenogenetic
apomictic vs. apomictical
aphrodisiac vs. provocative
aphrodisiacal vs. provocative
anestric vs. anestrous
anestrous vs. anoestrous
acerate vs. acerose
acerate vs. acicular
analyzable vs. decomposable
ane vs. one
azygos vs. azygous
antisocial vs. asocial
aerodynamic vs. sleek
alligatored vs. cracked
adept vs. practiced
adept vs. champion
adrenocorticotrophic vs. adrenocorticotropic
amylaceous vs. farinaceous
amyloid vs. farinaceous
amyloidal vs. farinaceous
astomatous vs. mouthless
aquiline vs. hooked
aflicker vs. flickering
aerosolised vs. aerosolized
ataractic vs. tranquilizing
ataractic vs. tranquilizer
ataractic vs. tranquillizer
ataractic vs. tranquilliser
ataraxic vs. tranquilizing
accented vs. stressed
accented vs. unaccented
accented vs. atonic
accented vs. tonic
anaemic vs. anemic
arced vs. bowed
arched vs. bowed
arching vs. bowed
arciform vs. bowed
arcuate vs. bowed
ace vs. super
ace vs. champion
ace vs. nail
allergic vs. hypersensitive
allergic vs. hypersensitized
allergic vs. hypersensitised
allergic vs. sensitized
allergic vs. sensitised
allergic vs. supersensitive
allergic vs. supersensitized
allergic vs. supersensitised
actinomorphic vs. actinomorphous
actinide vs. actinoid
actinoid vs. actinon
aided vs. assisted
accessary vs. accessory
accessory vs. appurtenance
accessory vs. supplement
accessory vs. accoutrement
accessory vs. accouterment
anachronic vs. anachronous