SAT GRE TOEFL placid Definition Calm and peaceful, not easily disturbed. Example "The lake was placid, reflecting the mountains like a mirror." Sign in to save SAT Quiz → GRE Quiz → TOEFL Quiz → ← placebo plagiarism → Study tips featuring "placid" Map Each Word Into a Connected Network Map the Author's Attitude Before Reading Questions Force Contrast Between Two Similar Words Related words SAT antonym SAT abase SAT abdicate SAT abdomen SAT abduction SAT abet SAT abeyance SAT abject SAT abjure SAT ablution SAT abnegate SAT abnormal