He knew what was going on and he never, in my experience, took risk that was indefinable.
He had that indefinable sixth sense that distinguishes gifted warriors from good ones.
Or we say that she moved, the centre of an indefinable nuance.
She had the indefinable look of one who dwells with a sorrow for which there is no cure.
But to my mind Clifton Hampden lacks that indefinable quality of charm found in such abundance elsewhere.
Across the intervals ran an indefinable spark, a bracing, a tension.
Social genius is as purely a gift of nature as poetry or music; and, of all others, it is the most subtle and indefinable.
And the indefinable tone of her voice when she called Delfina.
Other peoples are not made; they are neither made nor created but proceeding—out of a thousand indefinable causes.
Her heart was so full that it lent an indefinable sadness to her words.