aloof • arctic • autistic • bashful • blank • blunt • calm • calmness • check • chill • chilly • cold • cold as charity • constrain • control • cool • damp • detached • dispassionate • distant • drugged • dull • emotionless • frigid • frosty • frozen • heartless • heavy • icy • immovable • impassive • imperturbable • indifferent • inexcitable • keen • mean • moderate • modest • neat • objective • obtuse • Olympian • peaceful • placid • quiet • remote • removed • reserved • restrain • restrained • restraint • slow down • smooth • sober • solid • spiritless • stability • standoffish • steadiness • steady • still • Stoic • stolid • subdued • suppress • tough • tranquil • tranquillity • uncongenial • unemotional • unfeeling • ungenial • unimpassioned • unmoved • unpassionate • unperturbed • unresponsive • unruffled • unsympathetic • withdrawn