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Anonymous
(incognito, uncredited, unacknowledged)
Synonym option: Nameless
Antonym option: Named
Construct
(assemble, compose, formulate)
Synonym option: Build
Antonym option: Destroy
Novice
(learner, trainee)
Synonym option: Beginner
Antonym option: Expert
Similar
(like, related)
Synonym option: Alike
Antonym option: Different
Impartial
(neutral, objective)
Synonym option: Fair
Antonym option: Biased
Avid
(eager, passionate)
Synonym option: Enthusiastic
Antonym option: Apathetic
Feasible
(achievable, doable)
Synonym option: Possible
Antonym option: Impossible
Precise
(accurate, definite)
Synonym option: Exact
Antonym option: Imprecise
Spontaneous
(offhand, impromptu)
Synonym option: Unplanned
Antonym option: Planned
Naive
(novel, ignorant)
Synonym option: Innocent
Antonym option: Experienced
Capable
(adequate, accomplished)
Synonym option: Able
Antonym option: incapable
Merge
(absorb, blend, unite)
Synonym option: Combine
Antonym option: Separate
Prevalent
(widespread, everyday, accepted)
Synonym option: Common
Antonym option: Rare
Obnoxious
(unpleasant, rotten)
Synonym option: Annoying
Antonym option: Pleasant
Negligent
(inattentive, sloppy)
Synonym option: Careless
Antonym option: Attentive
Conclude
(close, end, halt)
Synonym option: End
Antonym option: Start
Meticulous
(Exact, strict, accurate)
Synonym option: Detailed
Antonym option: Careless
Significant
(compelling, meaningful)
Synonym option: Important
Antonym option: Insignificant
Famished
(hollow, parched)
Synonym option: Hungry
Antonym option: Full
Massive
(big, huge)
Synonym option: Large
Antonym option: Small
Apathy
(feeling, passive, listless)
Synonym option: Emotionless
Antonym option: Interest
Despicable
(vile, shameful)
Synonym option: Hateful
Antonym option: Good
Obsolete
(out-of-date, archaic)
Synonym option: Old
Antonym option: New
Specific
(distinct, definite)
Synonym option: Exact
Antonym option: General
Initiate
(begin, introduce)
Synonym option: Start
Antonym option: Stop