SAT GRE TOEFL IELTS tranquil Definition Calm, peaceful, and free from disturbance. Example "The lake was tranquil at dawn, reflecting the soft pink sky." Sign in to save SAT Quiz → GRE Quiz → TOEFL Quiz → IELTS Quiz → ← trample tranquility → Study tips featuring "tranquil" Spot the Vocabulary Trap in Every Question Audit Your Own Writing to Find Gaps Write GRE Words Into Your Own Sentences Related words SAT abase SAT abdicate SAT abdomen SAT abduction SAT abet SAT abeyance SAT abject SAT abjure SAT ablution SAT abnegate SAT abnormal SAT abominable