【Tender】 ,  【compassionate】 ,  【sympathetic】 ,  【warm】 ,  【warmhearted】 ,  【responsive】  are comparable when they mean expressing or expressive of feeling that reveals affectionate interest in another especially in his joys, sorrows, or welfare.

【Tender】 implies a sensitiveness to influences that awaken gentle emotions (as love, affection, pity, or kindliness) and often a capacity for expressing such emotions with a delicacy and gentleness that are especially grateful to the person concerned.

【Compassionate】 implies a temperament or a disposition that is either easily moved by the sufferings or hardships of another or is quick to show pity with tenderness or mercy.

【Sympathetic】  is a more comprehensive term than  【compassionate】 ; it implies a temperament or a disposition that enables one to enter into the life of another and share his sorrows, his joys, his interests, his antipathies, and his ways of thinking and feeling and to give that other the impression that he is not alone or that he is being fairly and justly understood.

【Sympathetic】 is also applicable to attitudes or treatments that reveal a capacity for appraising or treating men and their experiences with great fairness and understanding.

【Warm】  implies a capacity for feeling and expressing love, affection, or interest with depth, ardor, or fervency; it suggests less softness of feeling or compassion than  【tender】 , but more heartiness, cordiality, or force.

【Warmhearted】  differs little from  【warm】 in meaning, but it usually carries a stronger implication of generosity, unselfishness, and, often, compassionateness.

【Responsive】 differs from the preceding terms in usually suggesting sensitiveness to another’s display of tenderness, compassion, sympathy, or warmth and a capacity for responding to that emotion; it stresses impressionableness and suggests a reaction, rather than a taking of the initiative.