"clumsiness" in the noun sense
1. awkwardness, clumsiness, ineptness, ineptitude, maladroitness, slowness
unskillfulness resulting from a lack of training
2. awkwardness, clumsiness
the carriage of someone whose movements and posture are ungainly or inelegant
3. awkwardness, clumsiness, gracelessness, stiffness
the inelegance of someone stiff and unrelaxed (as by embarrassment)
Source: WordNet® (An amazing lexical database of English)
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