From Longman Dictionary of Contemporary EnglishI thought as muchI thought as muchSURPRISEDused to say that you are not surprised by something someone tells you ‘Andy failed his driving test.’ ‘I thought as much when I saw his face.’ → think
Examples from the Corpus
I thought as much• I must confess I felt a trifle guilty about your lonely watch: nothing to report? I thought as much.• "Andy failed his driving test." "I thought as much when I saw his face." 