Learn how to say Rigidness correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word rigid:
1unable to bend or be forced out of shape; not flexible:
a seat of rigid orange plastic
(of a person or part of their body) stiff and unmoving, especially as a result of shock or fear:
Beatrice was rigid with terror
2not able to be changed or adapted:
rigid bureaucratic controls
not adaptable in outlook, belief, or response:
the College had not wanted to be too rigid in imposing teaching methods
a lorry which is not articulated.
verb (rigidifies, rigidifying, rigidified)
late Middle English: from Latin rigidus, from rigere ‘be stiff’