perceptibly (adv.)
- apparently
 - appreciably
 - clearly
 - conspicuously
 - definitely
 - distinctly
 - evidently
 - explicitly
 - expressly
 - glaringly
 - manifestly
 - markedly
 - measurably
 - noticeably
 - observably
 - obviously
 - palpably
 - patently
 - plainly
 - prominently
 - recognizably
 - starkly
 - unmistakably
 - visibly