certainties
词形变化：
同义词：
conviction | assurance | certitude | belief | confidence | faith | foregone conclusion | safe bet | cert | inevitability | firmness | sureness | truth | conclusiveness | fact | absoluteness | reality | doubtlessness | irrefragability | trust | unquestionableness | infallibility | incontrovertibility | authoritativeness | reliance | validity | indisputability | actuality | incontestability | irrefutability | indubitability | authority | unimpeachability | sure thing | necessity | security | sure | bet | thing |
反义词：
uncertainty | doubt | mistrust |