Similar words: resourcefulness, peacefulness, gracefulness, usefulness, carefulness, hatefulness, wakefulness, wastefulness. Meaning: [fɔrs‚fʊl /fɔːs-] 
n. physical energy or intensity.
n. physical energy or intensity. 
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(1) I'm not sure if his forcefulness is an asset or a liability.
(2) She had inherited her father's forcefulness.
(3) They emphasize a sense forcefulness and beautiful shapes.
(4) A government has not the vitality and forcefulness of a living man.
(5) Note how in this case the tremolo creates an expectation of the forcefulness and dynamism which is to follow.
(6) The sextile between Mars and Pluto produces will power and forcefulness in your nature.
(7) These adjectives are synonymous when they refer to keenness and forcefulness of thought, expression, or intellect.
(8) These adjectives are synonymous when they refer keenness and forcefulness of thought, expression[Sentencedict.com], or intellect.
(9) In this era characterized by too much pettiness and flightiness, it is really a miracle that we should find such imposing forcefulness and artistic excellence as shown in his works.
(10) Professor Brian Cox takes a travelling in wager of the forcefulness maker of the future.
More similar words: resourcefulness, peacefulness, gracefulness, usefulness, carefulness, hatefulness, wakefulness, wastefulness, hopefulness, gratefulness, forceful, forcefully, awfulness, successfulness, sinfulness, joyfulness, lawfulness, willfulness, fearfulness, wistfulness, forgetfulness, restfulness, helpfulness, playfulness, harmfulness, mindfulness, bashfulness, painfulness, watchfulness, cheerfulness.