The word "strainable" has several antonyms, including "relaxing," "calm," "unstressed," "peaceful," "loose," "free," and "unstrained." When something is strainable, it means it can be pushed to the limit, leading to stress or anxiety. Its opposite, being in a relaxed state, removes the pressure and eases tension. Similarly, being calm allows you to stay composed under stress without feeling overwhelmed. Unstressed means feeling free from added tension, while a peaceful environment can promote tranquility and relaxation. Loose refers to something that is not tight or stretched, while freedom denotes a lack of restrictions and any limitations. Lastly, being unstrained means being without any undue tension or pressure.