てんから

adverb

from the start; from the beginning

Used to emphasize that something was the case from the very beginning, often with a nuance of 'completely' or 'entirely'.

• 彼かれの話はなしはてんから信しん用ようしていなかった。

  I didn't trust his story from the start.

• その計けい画かくはてんから無む理りだった。

  That plan was impossible from the beginning.

adverb

not at all; not in the slightest

Used with a negative verb to express complete negation; stronger than まったく in some contexts.

• 彼かれの言いうことはてんから当あてにならない。

  What he says is not at all reliable.

• そんな話はなしはてんから信しんじられない。

  I can't believe that story at all.