1 apparent, clear, evident, obvious, plain, patent, blatant, conspicuous, unmistakable or unmistakeable, discernible, recognizable, comprehensible, distinct, palpable, definite, explicit, unambiguous, unquestionable, indubitable, indisputable:
He lost his job because of his manifest dishonesty.
2 show, demonstrate, exhibit, evince, reveal, disclose, display, betray; express, declare:
Fitzsimmons had been manifesting signs of dissatisfaction with his assignment.
3 prove, corroborate, substantiate, attest:
His distaste for cauliflower was manifested by the look on his face.