gelassen

calm

quiet

tranquil

docile

leisurely

quiescent

restful

still

peaceful

composed

serene

unperturbed

easy-going

cool

placid

comfortable

convenient

cushy

easy

relieved

rest

unperturbedly

left standing

coolly

comfort

ease

feeling at home

gently

slowly

broadminded

calm and composed

sober-minded

unagitated

impassive

unruffled

New

(class-7,participle,past,strong,transitive) to allow; to permit; to let
(auxiliary,causative,class-7,participle,past,strong,transitive) to have someone (do something); to have (something done); to make (something happen); to cause (something to be done)
(class-7,participle,past,strong,transitive) to let remain, to leave (in a certain state)
(class-7,participle,past,strong,transitive) to stop (something); to quit; to refrain from; to help doing (something)
(class-7,intransitive,participle,past,strong) to cease; to desist