surer

Less likely wavering

Surer is the comparative form of sure—more certain, more confident, more reliable.

I'm surer now than I was yesterday.

There's no surer sign of spring than the first robin.

Though grammatically correct, many speakers prefer "more sure" in casual speech, finding surer slightly awkward on the tongue.

grip

firmer

More resistant to pressure

tighterMore firmly secured
steadierIncreasingly stable, comparative
strongerHaving greater power

safer · stable · locked · fastened · anchored · fixed · clenched · grasped · held · clasped

certainty

confident

Sure of oneself

definiteClearly established, not vague
positiveAffirming or certain
convincedFirmly believing something

undoubting · secure · settled · resolved · clear · decisive · unhesitating · unfaltering · unwavering · steadfast

reliability

trustworthy

Worthy of confidence

reliableConsistently performing as expected
consistentNot varying or contradicting
stableSecure and unchanging

steady · proven · tested · tried · sound · fail-safe · foolproof · predictable · unfailing · accurate

confidence

poised

Calm and controlled

composedCalm and self-possessed
boldCourageous and daring
assertiveConfidently self-assured

self-confident · unshakable · collected · steady · calm · grounded · centered · secure · fearless · courageous

Opposites

certainty/confidence

More unsteady or unstable

wobblier · unsteadier · warier · flimsier · riskier

Phrases

make sureVerify something is certain
not sureState of doubt
sure thingGuaranteed outcome or agreement
for sureExpressing complete certainty
making sureConfirming something is so
made sureConfirmed something would happen

Family

sure, unsure, assured, ensure, insure, insurance, reassure, assurance, assure

Familiarity: Top 200,000
Profile: Known to kids · Used worldwide · Timeless · Abstract · Everyday, not technical · Rated G