verb (past tense and past participle of[mellow] to grow or make mellow, to become or cause to become soft and sweet in nature or character, to develop in flavor through ripening, to become less harsh or severe in temper or character) as in strong fondness

Strongest matches

harden, tense

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Example Sentences

Example:His heart had hardened with the constant stress, and he found it difficult to empathize.

Definition:to make hard or harder; to make stiffer; to make unfeeling; to make more rigid or severe

From harden

Example:When he spoke to her, he noticed she had become more tense and nervous.

Definition:subject to or showing nervousness, anxiety, or strain; having a feeling of tension or strain; stiff or firm in texture, outline, or structure

From tense