Synonyms of even-keeled

adjectiveStable, not imbalanced.

• even-temperedRemaining calm even in situations that would cause many others to become angry, frustrated, panicky, etc.
• even-mindedHaving equanimity.
• calm
• steady
• collectedCool‐headed, emotionally stable, in focus.
• composedShowing composure.
• cool-headedCalm and imperturbable, especially under pressure.
• equable
• equanimousCalm and composed; of stable disposition.
• equanimitableSynonym of equanimous.
• imperturbableNot capable of being, or not easily, perturbed, excited, or upset; calm and collected, even under pressure.
• laid-backRelaxed and easy‐going; demonstrating an absence of stress or worry.
• level-headedSensible; rational; possessing sound judgment.
• mellowWell-matured from age or experience; not impetuous or impulsive; calm, dignified, gentle.
• pacificCalm, peaceful.
• peaceableCharacterized by peace; peaceful, tranquil.
• peacefulMotionless and calm.
• phlegmaticNot easily excited to action or passion; calm; sluggish.
• placidCalm and quiet; peaceful; tranquil.
• quiescentInactive, quiet, at rest.
• quietHaving little motion or activity; calm.
• relaxedFree from tension or anxiety; at ease; leisurely.
• rooliePeaceful; still.
• sedateOf a person or animal, or their behaviour: calm and composed (often in a dignified manner), and avoiding or unaffected...
• sereneCalm, peaceful, unruffled.
• stillNot moving; calm.
• tranquilFree from emotional or mental disturbance.
• unexcitedNot feeling excitement or keen interest; placid; bored.
• unfazed
• unflappableRemaining composed and level-headed at all times; impossible to fluster; not becoming frustrated or irritated easily.
• unflusteredNot flustered; calm.
• unperturbableNot perturbable.
• unruffableImperturbable.
• unruffledCalm, not ruffled, serene, at peace, unbothered.
• untumultuousNot tumultuous; calm, placid.
• pacate obsoletePeaceful, tranquil.