MANIFEST adjective readily perceived by the eye or the understanding; evident; obvious; apparent; plain: a manifest error. Synonyms – glaring, palpable Antonym - hidden NONCHALANT adjective coolly unconcerned, indifferent, or unexcited; casual: His nonchalant manner infuriated me. Synonyms – aloof, mellow Antonym - biased OBLIVIOUS adjective unmindful; unconscious; unaware (usually followed by of or to): She was oblivious of his admiration. Synonyms – inattentive, unfamiliar Antonym - aware PERMEATE verb (used with object) to pass into or through every part of: Bright sunshine permeated the room. Synonyms – invade, seep Antonym - dehydrate QUAGMIRE noun an area of miry or boggy ground whose surface yields under the tread; a bog. Synonyms – dilemma, entanglement Antonym - solution RECIPROCATE verb (used with object) to give, feel, etc., in return. Synonyms – repay, retaliate Antonym - keep SPECULATIVE adjective pertaining to, of the nature of, or characterized by speculation, contemplation, conjecture, or abstract reasoning: a speculative approach. Synonyms – analytical, dangerous Antonym - safe TEDIOUS adjective marked by tedium; long and tiresome: tedious tasks; a tedious journey. Synonyms – annoying, boring Antonym - exciting UBIQUITOUS adjective existing or being everywhere, especially at the same time; omnipresent: ubiquitous fog; ubiquitous little ants. Synonyms – everywhere, pervasive Antonym - rare VIVACIOUS adjective lively; animated; gay: a vivacious folk dance. Synonyms – animated, bouncy Antonym - boring YEARN verb (used without object) to have an earnest or strong desire; long: to yearn for a quiet vacation. Synonyms – ache, crave Antonym - dislike ZEALOUS adjective ardently active, devoted, or diligent; full of, characterized by, or due to zeal. Synonyms – enthusiastic, eager Antonym - apathetic