All cool as a cucumber synonyms

adj cool as a cucumber

• serene — calm, peaceful, or tranquil; unruffled: a serene landscape; serene old age.
• easygoing — going easily, as a horse.
• quiet — making no noise or sound, especially no disturbing sound: quiet neighbors.
• gentle — kindly; amiable: a gentle manner.
• peaceful — characterized by peace; free from war, strife, commotion, violence, or disorder: a peaceful reign; a peaceful demonstration.
• tranquil — free from commotion or tumult; peaceful; quiet; calm: a tranquil country place.
• smooth — free from projections or unevenness of surface; not rough: smooth wood; a smooth road.
• comfortable — If a piece of furniture or an item of clothing is comfortable, it makes you feel physically relaxed when you use it, for example because it is soft.
• placid — pleasantly calm or peaceful; unruffled; tranquil; serenely quiet or undisturbed: placid waters.
• sedate — calm, quiet, or composed; undisturbed by passion or excitement: a sedate party; a sedate horse.
• laid-back — relaxed or unhurried: laid-back music rhythms.
• unflappable — not easily upset or confused, especially in a crisis; imperturbable.
• collected — An author's collected works or letters are all their works or letters published in one book or in a set of books.
• composed — If someone is composed, they are calm and able to control their feelings.
• cool — Something that is cool has a temperature which is low but not very low.
• detached — Someone who is detached is not personally involved in something or has no emotional interest in it.
• halcyon — calm; peaceful; tranquil: halcyon weather.
• imperturbable — incapable of being upset or agitated; not easily excited; calm: imperturbable composure.
• restful — giving or conducive to rest.
• self-possessed — having or showing control of one's feelings, behavior, etc.; composed; poised.
• still — remaining in place or at rest; motionless; stationary: to stand still.
• irenic — tending to promote peace or reconciliation; peaceful or conciliatory.
• poised — (of a person) composed, dignified, and self-assured.
• clear — Something that is clear is easy to understand, see, or hear.
• content — The contents of a container such as a bottle, box, or room are the things that are inside it.
• dispassionate — free from or unaffected by passion; devoid of personal feeling or bias; impartial; calm: a dispassionate critic.
• easy — not hard or difficult; requiring no great labor or effort: a book that is easy to read; an easy victory.
• fair — free from bias, dishonesty, or injustice: a fair decision; a fair judge.
• limpid — clear, transparent, or pellucid, as water, crystal, or air: We could see to the very bottom of the limpid pond.
• patient — a person who is under medical care or treatment.
• pellucid — allowing the maximum passage of light, as glass; translucent.
• phlegmatic — not easily excited to action or display of emotion; apathetic; sluggish.
• quiescent — being at rest; quiet; still; inactive or motionless: a quiescent mind.
• resting — that rests; not active.
• satisfied — content: a satisfied look.
• unruffled — calm; not emotionally upset or agitated; steady; unflustered: He became all excited, but she remained unruffled.
• untroubled — without trouble, discomfort, or disturbance: an easy, untroubled life; He was untroubled by daily setbacks.
• at peace — in a state of harmony or friendship
• stoical — impassive; characterized by a calm, austere fortitude befitting the Stoics: a stoical sufferer.