absolute, gospel
My grandmother's recipes are gospel truth in our family, and nobody dares change them.
honest
My friend always tells me the honest truth, even when it might hurt my feelings.
real
My grandmother always told us the real truth about what happened during the war.
full, whole
She finally admitted the full truth about what happened that night at the party.
naked, plain, simple
The naked truth about the accident came out during the police investigation.
awful, bitter, cruel, dreadful, hard, harsh, horrible, horrid, painful, sad, shocking, terrible, unpalatable, unpleasant, unwelcome
She finally had to face the harsh truth that her marriage was over.
empirical, historical, moral, poetic, psychological, religious, scientific, spiritual
The ancient texts describe events that lack historical truth, yet they remain culturally significant.
unvarnished
She finally told him the unvarnished truth about what happened that night.