顕然 is read as けんぜん (kenzen) and means clear.
けんぜん
kenzen
けんびきょう
microscope
けんざい
being actual (as opposed to hidden or latent)
けんしょう
honouring (publicly)
けんちょ
remarkable
けんじてきしょうひ
conspicuous consumption
けんせいだい
Phanerozoic
けんしょうかい
Kenshōkai (Buddhist lay group)
けんじせんこう
revealed preference
けんざいか
being actualized
けんじせい
highlighting
けんせいかんせん
apparent infection
けんかしょくぶつ
phanerogam