atmosphere (noun) the air that surrounds Earth; the feeling or mood in a room or place synonym: environment brilliant (adj) sparkling or full of light; striking and shiny; very smart synonym: bright antonym: dull convince (verb) to get someone to believe something or to do something; to win over synonym: persuade endure (verb) to put up with; to continue in the same way for a long time synonym: withstand glance (verb) to look quickly (noun) a quick look synonym: peek antonym: stare harsh (adj) rough or unpleasant to the senses; unkind in voice or behavior synonym: cruel antonym: pleasant plunge (verb) to fall quickly (noun) the act of jumping in synonym: (v) drop (n) dive precious (adj) very high-priced; loved and adored synonym: special antonym: worthless swift (adj) able to move at a quick speed synonym: rapid antonym: slow unite (verb) to bring two or more parts together to make a whole synonym: join antonym: split