Word.ws English Dictionary

Synonyms of phlegmatic

91 similar words

Another word for phlegmatic is still. Other synonyms of phlegmatic are pacific, laid-back, level-headed, cool-headed and quiet.

Synonyms and similar words for phlegmatic

adjectiveNot easily excited to action or passion; calm; sluggish.

  • apathetic
  • cold-bloodedLacking emotion or compunction.
  • phlegmishCharacterized by the humor phlegm; apathetic or composed.
  • unflappableRemaining composed and level-headed at all times; impossible to fluster; not becoming frustrated or irritated easily.
  • stoic
  • adiaphroistic
  • apathisticalApathetic; unemotional.
  • blaséUnimpressed, indifferent, especially because of overfamiliarity.
  • blithe
  • deaf
  • coolNot showing emotion; calm and in control of oneself.
  • shiftless
  • dispassionateNot showing, and not affected by, emotion, bias, or prejudice.
  • dullInsensible; unfeeling.
  • enervatedWeakened, debilitated or deprived of strength or vitality.
  • gallionic
  • halfheartedLacking full energy, effort, commitment, or resolve.
  • impassiveHaving, or revealing, no emotion.
  • ineffervescibleNot effervescible.
  • insouciantCasually unconcerned; carefree, indifferent, nonchalant.
  • indifferentAmbivalent; unconcerned; uninterested, apathetic.
  • insensibleIncapable of mental feeling; indifferent.
  • jadedBored or lacking enthusiasm, typically after having been overexposed to, or having consumed too much of something.
  • languidOf a person or their actions, character, etc.: lacking drive, emotion, or enthusiasm; apathetic, listless, spiritless...
  • languorousLacking energy, spirit, liveliness or vitality; languid, lackadaisical.
  • lethargicIndifferent, apathetic.
  • listlessLacking energy, enthusiasm, or liveliness.
  • lackadaisicalShowing no interest, vigor, determination, or enthusiasm.
  • lotophagousRelating to the Lotophagi (lotus eaters).
  • lukewarmUnenthusiastic (about a proposal or an idea).
  • mehApathetic; unenthusiastic.
  • mopeyGiven to moping; in a depressed condition, low in spirits; lackadaisical.
  • nonchalant
  • nonplussed USUnaffected, unfazed; unimpressed.
  • otioseOf a person, possessing a bored indolence.
  • pococuranteApathetic, indifferent or nonchalant.
  • spiritlessLacking energy, drive, motivation or emotion. Enervated.
  • supineReluctant to take action due to indifference or moral weakness; apathetic or passive towards something.
  • tepidUninterested; exhibiting little passion or eagerness; lukewarm.
  • torpidLazy, lethargic or apathetic.
  • unarousedNot aroused.
  • uncaringCharacterized by a lack of care; not caring.
  • unconcernedIndifferent and having no interest; aloof.
  • unenthusiasticWithout enthusiasm; unexcited.
  • unimpressibleNot impressible; not sensitive; apathetic.
  • uninterestedNot interested; indifferent, not concerned.
  • unlivelyNot lively.
  • unmovedNot affected emotionally, or not showing emotion.
  • untouchedNot influenced, affected or swayed.
  • unzealousNot zealous.
  • world-wearyBored with life.
  • calm
  • steadyPhlegmatic, calm; not easily upset, excited, or disturbed.
  • 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.
  • even-keeledStable, not imbalanced.
  • even-mindedHaving equanimity.
  • even-temperedRemaining calm even in situations that would cause many others to become angry, frustrated, panicky, etc.
  • 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.
  • 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
  • unflusteredNot flustered; calm.
  • unperturbableNot perturbable.
  • unruffableImperturbable.
  • unruffledCalm, not ruffled, serene, at peace, unbothered.
  • untumultuousNot tumultuous; calm, placid.
  • heartless rareListless, unenthusiastic.
  • Laodicean archaicHalf-hearted or apathetic, especially with regards to religion or politics.
  • torpedinous archaicStupefying; dull; torpid.
  • pacate obsoletePeaceful, tranquil.

adjectiveGenerating, causing, or full of phlegm.

  • phlegmyCharged with phlegm.
  • phlegmatous archaicSynonym of phlegmatic (“generating, causing, or full of phlegm”).

Meaning of phlegmatic

  1. adjective Not easily excited to action or passion; calm; sluggish.
  2. adjective Generating, causing, or full of phlegm.
  3. noun One who has a phlegmatic disposition.

Full definition of phlegmatic

phlegmatic in other languages

Questions about synonyms of phlegmatic

What is another word for phlegmatic?
Phlegmatic has 91 synonyms on Word.ws, such as still, pacific, laid-back, level-headed, cool-headed, quiet, even-minded and collected.
What does phlegmatic mean?
Phlegmatic means not easily excited to action or passion; calm; sluggish.

Source and license

Adapted from Wiktionary: phlegmatic (page history and authors) and the entries of the words listed. Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws grouped the synonyms and antonyms by meaning and added links. Wiktionary data of 2026-09-02.

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Cite this page: “Synonyms of phlegmatic.” Word.ws, https://word.ws/synonyms/phlegmatic. Based on Wiktionary, CC BY-SA 4.0.