否 is a Japanese kanji written with 7 strokes, listed here under the keyword “negate”. It is built from 不 (negative) and 口 (mouth). In Remembering the Kanji by James W. Heisig it is frame 1303.
On KumiJi Glyph Explorer, open the parts search and type “negative” + “mouth”. 否 is among the results, together with every other character containing the same shapes.
Open 否 in the interactive kanji search
to expand every part down to its smallest pieces, add your own names and mnemonic stories,
or search for other characters by their parts.