Serenely self-possessed; calm:
Serenely deliberate, composed, and dignified in character or manner.
(Law) Of or relating to things, such as trees and buildings, attached to real property:
The definition of unflappable is not easily flustered.
Not agitated or excited; tranquil
Neither warm nor very cold; moderately cold:
The definition of levelheaded is calm and sensible.
The definition of placid is calm or quiet.
Enduring or permanent:
Free from anxiety, tension, or restlessness; composed:
Not agitated emotionally; calm:
Capable of responding to stimuli.
(Informal) Having the jitters
In an ill humor; bad-tempered; peevish
The definition of detached is separate or not connected, or not emotionally involved.
Having an even number in a sequence.
Without warmth or enthusiasm; showing cool lack of concern; casually indifferent
Find another word for imperturbable. In this page you can discover 29 synonyms, antonyms, idiomatic expressions, and related words for imperturbable, like: composed, sedate, immovable, unflappable, calm, collected, cool, levelheaded, placid, serene and stable.