Superlative form of tender: most tender.(adjective)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "tenderest" in a sentence
"My father grieved with exceeding grief to hear these words; but reared me in tenderest fashion and educated me excellently well until my fifteenth year was told."
"We think of you so, so often! and our hearts go out to you in tenderest sympathy; and you know better than this poor letter can tell you how happy we always are to have you with us!"
"He walked on bravely, looking neither to the right nor left, till he reached the centre and plucked the tallest ear; but as he turned homewards a thousand sweet voices rose behind him, crying in tenderest accents, 'Pluck me too! oh, please pluck me too!'"