The word Sterless is misspelled against Steerless, an adjective meaning "Having no rudder."
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Steerless has double "ee" is mispronounced as "e"
Remember double 'EE' in between the strings St & rless which should not be misspelled with single 'E'
Wrong Spelling:  St-e-rless 
Correct Spelling:  St-ee-rless 
Explore spell check of Steerless to spell without errors.