let rip (verb) break wind: pass gas
Sinonime: apparent, clear,
conspicuous, decided, distinct, evident, explicit, for certain, glaring, indisputable, manifest, no ifs ands or buts, obvious, open and shut, palpable, patent, plain,
positive,
pronounced, self-explanatory, straightforward,
sure,
transparent, unambiguous,
unequivocal, univocal
Antonime: doubtul, indefinite,
indistinct, mistakable, uncertain, unsure