ADJ.
harsher, particular
VERB + UNKINDLINESS
know, measure
UNKINDLINESS + NOUN
things
PREP.
without
noun
Unkindness.
Lord Walderhurst gazed at her through the monocle with an air he sometimes had of taking her measure without either unkindliness or particular interest.
Unfavourableness.
Luxury did not spoil her; and any one that saw her in the soft furs of her winter wrappings, would have said that delicate cheek and frame were never made to know the unkindliness of harsher things.
Unnaturalness.
Lord Walderhurst gazed at her through the monocle with an air he sometimes had of taking her measure without either unkindliness or particular interest.
WiktionaryLuxury did not spoil her; and any one that saw her in the soft furs of her winter wrappings, would have said that delicate cheek and frame were never made to know the unkindliness of harsher things.
Wiktionaryi Register
In some senses, unkindliness is marked as dated, archaic, obsolete. Watch for register when choosing this word.